00Start Here

Chloe

Congratulations. A job at Space NK, in Glasgow, for the Christmas season. That's a real achievement.

You've got about two hours on the bus each way. That's four hours a day when you could be looking out of the window, or you could turn up knowing more about the shop, the brands and the skin science than most people expect from someone in their first month. This guide is for the second option.

It isn't a replacement for Space NK's own training. They'll teach you how they do things, the till, the policies and the products they want you to know first. Where anything here disagrees with what they tell you, they're right and this is wrong. What this gives you is the background, so the training lands on something.

What's in here

The company and the job

• Where Space NK came from, who owns it now, and why it works the way it does
• What customers will ask you about: rewards, returns, delivery, gift wrapping, the advent calendar
• How to be brilliant on the shop floor, including the tricky moments
• Christmas, and how to enjoy it rather than survive it
• The bigger picture: the UK beauty market, the competition, and what this job can do for your degree and your CV

The science

• How skin works, and when a customer needs a pharmacist rather than a serum
• Every ingredient customers ask about, what it does, and how good the evidence really is
• Sun protection, hair, fragrance and makeup
• What you can and can't say about a product, which matters more than you'd think

Every brand, A to Z

On a separate page: every brand on Space NK's website, what it's known for, what it costs, its best sellers, and who to suggest it to. There are more than 200, so nobody expects you to learn them all. Learn the ones in your shop first, then browse.

Three ways to use it

Read it. Each chapter is written for a phone, in short sections. Each one ends with "Remember this", a handful of lines to recall at the till.

Listen to it. Every chapter is also a recording, including the brands. Press play when the bus pulls away. Save a few to your phone before you set off, because the signal comes and goes.

Ask it. The box near the top of the page has read the whole guide, every brand and all the research behind it. Ask it the way a customer would ask you: "someone with oily, sensitive skin wants a moisturiser under £40." It answers with real products and prices, and it's built to tell you when something isn't in the guide rather than making it up.

A plan for the three months

Before your first shift: chapters 1, 2 and 10. Know the company, know what customers ask about, know how to start a conversation. That's enough to walk in confident.

Your first two weeks: chapters 3, 4 and 9, skin, the ingredients and what you can say. This is what lets you answer the questions properly. Then look up the brands you keep seeing in your shop.

By November: chapters 5 to 8 for sun, hair, fragrance and makeup, and chapter 11 for Christmas. The rush builds through November, with Black Friday falling on 27 November this year (check Space NK's own dates).

Any time: chapter 12, the bigger picture. That one's for you and your degree as much as for the shop.

A thought before you start

Our family business has one rule about customers: we educate, we never sell. We help people understand the choice and make the right one for them, and we never push.

Space NK's own advert for your job asks for "unbiased customer advice". That's the same idea in different words. The job also comes with targets, and chapter 10 is plain about that. But the people who do best on a shop floor are nearly always the ones customers trust, and trust comes from knowing your stuff and giving people a straight answer, even when the straight answer is "you don't need that".

How this was made

Every fact in this guide comes from somewhere I can point to: Space NK's own website, the brands' pages on it, the NHS, the British Association of Dermatologists, the government's rules on cosmetics, and proper newspapers and trade publications. Nothing from memory. The product details and prices were taken from Space NK's website on 29 September 2026, so they'll drift as the season goes on. The last chapter lists the sources.

It isn't from Space NK, and they haven't seen it. It's from me.

Love, Grandad

Remember this

• Space NK's training and your managers always come first.
• Chapters 1, 2 and 10 before your first shift.
• Listen on the bus; save recordings before you lose signal.
• Ask the box the way a customer would ask you.
• Learn the brands in your own shop first.
• Educate, never sell.

01The Company You've Joined

You'll wear the name on a badge for three months, so it's worth knowing how it got there. Nobody will quiz you on it, but it tells you why the shop works the way it does.

A surveyor from Belfast

Space NK was founded in 1991 by Nicky Kinnaird, and its first shop opened in Covent Garden, London, in 1993.

She wasn't a beauty person to begin with. An Irish Times profile from 1997 describes her as Belfast-born. She studied land management at Reading University and then worked as a chartered surveyor in London for eight years.

The shop came out of that work. In her own words to the Irish Times: "The backers of one of the companies I'd done work for were looking for an anchor tenant in a development in Covent Garden. They said if I could come up with an interesting concept, then they'd back me."

It's often said that the "NK" in the name is her initials. The only source I found for that is Wikipedia, so treat it as unconfirmed.

Smoothies, fashion and hard-to-find beauty

The first shop wasn't a beauty shop at all, or not only one. Space NK's own About page says it opened "selling fresh smoothies, independent fashion labels and hard-to-find beauty treasures from emerging international brands such as Diptyque, By Terry and NARS."

The 1997 profile adds that it had a cafe, plus "some cosmetics lines never before available in London."

The apothecary idea

After opening three more branches, Kinnaird dropped the clothes and started calling her shops apothecaries. Her reason, to the Irish Times: "I can't be a jack of all trades."

The word never went away. The Westbourne Grove shop in London is still listed as "Space.NK Apothecary", and the help centre signs itself "SPACE.NK.apothecary". If you see it on paperwork, that's where it comes from.

The discovery idea

This is the bit that still defines the business.

In the 1990s, many of the brands Kinnaird wanted came from the US and, as the Irish Times put it, "could only be brought back by transatlantic travellers." She brought brands like Kiehl's, Philosophy and NARS to a much wider UK following, and she was described as "personally testing almost every product before introducing it into her shops."

Two details from that 1997 article sound very like the job you're about to do:

• She tested things herself before stocking them. Curation, not just stocking whatever sells.
• Staff were trained by every supplier, not one. "Staff are trained on a rotational basis by all suppliers, so that they are familiar with every item for sale and not just with one specific brand."

That second point is why you're not a brand counter assistant. You're there to know the whole shop.

Firsts: Manzanita Capital, the former owner, says Space NK "was the first UK retailer to stock By Terry, Diptyque and NARS." That's the former owner's claim, but it matches the About page's list of early brands.

From one shop to a national chain

TheIndustry.beauty published a timeline in July 2025. The main steps:

• 1996: focuses solely on beauty and launches a mail order service.
• 2002: bought by Manzanita Capital.
• 2003: opens a flagship at Duke of York Square in London.
• 2004: SpaceNK.com launches.
• 2007: expands into the US with a store in New York, followed by a partnership with Bloomingdale's.
• 2014: Nicky Kinnaird leaves. Cosmetics Business reported she left "to set up her own brand consultancy."
• 2019: Andy Lightfoot becomes chief executive.
• 2020: closes its US stores to focus on selling through Bloomingdale's and Nordstrom.
• 2022: launches at Walmart in the US, and opens its first double-level store, in Covent Garden.
• 2023: opens its largest store at that point, at Westfield London.

The US shops had closed in 2020, and in June 2024 it sold its US wholesale business. As of September 2026 there are no Space NK shops in America.

Who owns it now

For 23 years the owner was Manzanita Capital, which Ulta's announcement describes as "a beauty sector specialist investor with a long-term investment horizon". It bought the business in 2002.

On 10 July 2025, Ulta Beauty, the largest specialty beauty retailer in the US, announced it had bought Space NK. Ulta described it as "a leading British beauty retailer". A few things worth knowing about the deal:

• The price wasn't published. Both sides kept the terms private. Cosmetics Business later reported that sources close to Ulta put it at "more than £300m". That's a press estimate, not an official figure.
• Space NK runs as its own business. Ulta's announcement said it "will operate as a standalone subsidiary of Ulta Beauty". So you work for Space NK, not for Ulta.
• Why Ulta bought it. Ulta's chief executive, Kecia Steelman, said it offered "a unique and strategically compelling opportunity to enter the growing UK market with a successful and growing brand."
• What Ulta says it wants to protect. In April 2026 Steelman said: "I want to really protect what makes Space NK really unique, because they are very special, and I want to keep them authentically who they are." She also praised Space NK as "fantastic at brand curation, especially in the prestige to luxury side of the business."

She has hinted that the two brands might one day sit side by side in the US, but said the main focus "right now" is growth in the UK.

A new boss, September 2026

This was true in September 2026, and it's very recent.

On 11 September 2026, Space NK announced that Emma Simpson-Scott would become chief executive from 13 September, taking over from Andy Lightfoot. She'd been Chief Marketing Officer for seven and a half years and at Space NK for ten years in total.

Lightfoot had joined in 2016 as global digital director and became chief executive in April 2019. Under him the business grew fast (more on that below).

Two more senior people arrived at the same time: Hannah Quy as Chief Financial Officer, and Tiff Ruis, who joined from Ulta as Senior Vice President of Retail and Ecommerce.

When asked about the company's values in September 2026, Simpson-Scott named them as: "Our customer-first thinking, trusted curation and service excellence." It's your job description in six words.

Size and money

These figures come from the latest published accounts and reports. Every one has a date, because they're moving quickly.

The year to March 2025 (the latest accounts found, reported in January 2026):

• Turnover of £266 million, up from £196.5 million the year before. That's a rise of 35 per cent.
• Like-for-like sales in the stores up 19 per cent.
• EBITDA (a measure of operating profit) of £26.47 million, up from £15.94 million.
• Net profit of £12.35 million, up from £7.45 million.

The year to March 2024: turnover rose 34 per cent to £196.5 million, and pre-tax profit went from £1.5 million to £7.5 million.

Young customers. In November 2024 Space NK said its fastest-growing customers were the under-25s, up 164 per cent. The report didn't say over what period.

Christmas 2025 (November and December):

• The whole business grew 26 per cent on the year before. Stores grew 23 per cent and online 30 per cent.
• Black Friday was the biggest sales week in the company's history, almost 20 per cent above the previous record.
• According to Circana, a market research firm, Space NK grew four times faster than the overall market in that period and gained nearly 1 per cent more market share.

People: the careers site shows 1,811 team members. The April 2025 gender pay gap report counted 1,508, of whom 1,177 were in retail stores, and says 61 per cent of the workforce works part time. So you're joining a company where part-time working is normal, not unusual.

Growth plans: in January 2026 Lightfoot said Space NK would open, or significantly expand, 10 to 12 stores a year.

The stores

The count depends on the date, because new stores keep opening. The most recent figure is Space NK's own, from 23 September 2026: "Today there are 90 stores" across the UK and Ireland. You'll see older numbers (83, 87) on some of its own pages. They're out of date, not wrong.

The two Glasgow shops. I don't know yet which one is yours, so here are both.

• Princes Square, 48 Buchanan Street. The city centre shop, on the first floor of Princes Square. Its normal hours are 10am to 6pm Monday to Wednesday and Friday to Saturday, 10am to 7pm on Thursday, and 11am to 5pm on Sunday. Christmas hours may differ. WWD reported in January 2026 that sales were "ballooning" at newly refurbished stores, and Glasgow was one of the four it named.
• Silverburn, Barrhead Road. Opened on 3 July 2026, a ground-floor store of around 5,000 square feet. Space NK's Head of Retail, Charlie Evans, said at the opening: "Glasgow is an incredible beauty-loving city, and we're delighted to bring a second store to the area." It opened with brands including Vieve, Phlur, Byoma, YSL and Armani, and customers buying a travel bag can have it personalised in store.

Scotland has four Space NK shops in all: the two in Glasgow, plus George Street and St James Quarter in Edinburgh. St James Quarter opened in March 2023. It's twice the size of George Street, with makeup and skincare play tables, two treatment rooms and a fragrance discovery area.

The flagship. The Oxford Circus store in London opened on 8 August 2025 in part of the old Topshop building. It covers 4,600 square feet and has a fully staffed fragrance bar. By January 2026 it was the company's number one store.

Some newer stores have more to them. Westfield London has a play table, two treatment rooms, expert pods for one-to-one consultations and a refill and recycling station. St James Quarter has play tables, treatment rooms and a refill area.

What makes Space NK different

I've only included comparisons that a source actually makes.

Curation. Space NK calls itself "the ultimate curator of over 100 of the most in-demand, highly innovative and boundary-pushing beauty brands". Its 2026 Modern Slavery Statement gives a bigger and more recent figure: "over 170 partner brands", including its own. The website's brand list is longer again, over 200 on 29 September 2026, because it lists every brand name on the site.

Unbiased advice. The job advert for your role asks for "unbiased customer advice through exceptional product knowledge". It echoes the 1997 idea of staff who know every brand. You're not tied to one brand.

More premium than the high street. TheIndustry.beauty describes Space NK as "positioning itself as a more premium retailer than the likes of Boots, Superdrug and Sephora in the UK."

A regular's shop. As Sephora prepared to come back to the UK in 2023, one expert quoted by BeautyMatter put Space NK's strength like this: "You visit it more often and are more of a regular; there are staff you recognize and it's more community spirited." A supervisor called Nana says on the careers site that some of her customers have followed her "from store to store". That's the goal.

Exclusive launches. These are a big part of how Space NK stands out. In 2022 it had exclusive launches for Rare Beauty, Tatcha and JVN. And on 22 September 2026, Beyoncé's hair care brand Cécred launched exclusively in all its stores. It broke the record for the biggest brand launch in Space NK's history, and met its full week's predicted sales by 1pm on launch day.

New brands keep arriving. Cosmetics Business said newly onboarded brands, including Victoria Beckham Beauty and Refy, supported Space NK's sales growth in November and December 2025.

High and low. Lightfoot said in January 2026 that "customers are value-sensitive nowadays, and are shopping high and low." A luxury shop doesn't mean every customer is spending big.

Values and sustainability

This is where I've been most careful, because companies say a lot and prove less.

What the sources show:

• A sustainability pledge. The current website says: "We want to do everything within our power to be better and do better." The programme is called Better Space.
• Packaging recycling. In January 2022 Space NK launched a scheme with Handle Recycling, with collection points in all 74 stores it had then, accepting "all recyclable beauty packaging, including items from brands that are not sold by the retailer." Whether that scheme still runs in 2026 isn't clear: the sustainability page says a new recycling partner is to be announced soon. Ask your manager what your store does now.
• Refills. Some newer stores, such as Edinburgh St James Quarter, have refill areas where customers can top up Space NK's own hand and body products.
• "Clean" beauty as a choice. Space NK offers a clean beauty edit, which it defines as formulations "free from a list of potentially harmful and irritating ingredients". It presents this as a choice for customers, not a rule for everything on the shelves.
• Charity. Staff get a charity day each year.
• Pay. The April 2025 gender pay gap report says: "The difference in pay is now 0.28p in favour of women."

What the sources don't show:

• B Corp. The sources I found don't show that Space NK itself is a certified B Corp. It stocks B Corp brands and writes about them, but that's the brands, not the retailer. If a customer asks, the safe answer is that you'd need to check.
• An ingredient standard for the whole range. I found no published list of banned ingredients that applies to everything Space NK sells.
• A named charity partner. I found none for the company itself.

Awards

• Retailer of the Year, The Fragrance Foundation UK Awards 2026 (June 2026).
• Physical Retail Award for the Oxford Circus flagship, TheIndustry.beauty Innovators Awards 2026 (September 2026).
• Shortlisted for Beauty Retailer of the Year at the Retail Gazette RG Excellence Awards 2026. The winner is announced on 14 October 2026, so you might hear the result while you're there.

Things to drop into conversation

Five facts that are true, sourced and more interesting than most people expect:

1. The first shop sold smoothies. In 1993 in Covent Garden, alongside fashion labels and hard-to-find beauty brands.
2. It was the first UK retailer to stock NARS, Diptyque and By Terry, according to its former owner.
3. Cécred met a whole week's predicted sales by 1pm on its first day, 22 September 2026, the biggest brand launch in Space NK's history.
4. Under-25s were its fastest-growing customers, up 164 per cent, as Space NK said in November 2024.
5. The founder was a chartered surveyor, and the shop began when backers she knew through work needed a tenant for a Covent Garden development, and said they'd back her if she came up with "an interesting concept".

Remember this

• Founded 1991 by Nicky Kinnaird. First shop, Covent Garden, 1993.
• The founding idea: hard-to-find brands, tested and chosen, with staff who know every brand.
• Owned by Ulta Beauty since July 2025, run as a standalone business.
• New chief executive from 13 September 2026: Emma Simpson-Scott.
• About 90 stores as of September 2026. Two in Glasgow: Princes Square and Silverburn.
• Turnover £266 million in the year to March 2025, up 35 per cent.
• Values in her words: customer-first thinking, trusted curation, service excellence.

02How Space NK Works for Customers

This chapter is about the questions customers will ask you that aren't about a product. How do the points work? Can I return this? Can you wrap it? Where's my order?

One thing first. Everything here comes from Space NK's public website and help centre as they stood on 29 September 2026. Policies change, especially at Christmas. How things actually work in your store, and anything to do with the till, is for your training and your manager. They always come first. Use this chapter to understand the shape of things, so the training sticks faster.

NDULGE Rewards

You'll hear about this constantly, because signing people up is part of the job. The advert for your role lists "the company acquisition target for N.dulge" as a responsibility. (You'll see it written N.dulge, N.DULGE and NDULGE. They're the same scheme.)

Joining. It's free. Anyone aged 16 or over can join, in any UK Space NK store or online.

Earning. Members earn 1 point for every £1 they spend. Every 100 points turns into a £5 reward.

The top tier. Spend £1,000 or more within 12 months and you're automatically upgraded to NDULGE Deluxe for a year. Deluxe members get £10 for every 100 points instead of £5, so their points are worth twice as much.

How long things last:

• Once a member reaches 100 points, the reward is added to their account automatically within 48 hours.
• Reward vouchers are valid for 3 months.
• Points expire after 12 months.

That's worth knowing, because you may well hear "I had a voucher and now it's gone".

Birthday gifts. Members get a surprise birthday gift, and Deluxe members get "a luxury, full-size beauty gift". The help centre sets two conditions: the customer must be subscribed to marketing emails and must have made a purchase within the last 12 months. Birthday emails go out between the 1st and 8th of the birthday month. Deluxe members can order their gift in store with a beauty advisor, and it's sent by next-day delivery to their home or chosen store.

One current notice: the help centre says October 2026 birthday emails "may be subject to a short delay". If a customer with an October birthday asks, that's why.

Other perks. Invitations to brand events, double points days and early access. The 2026 advent calendar is an example: it went on sale two days early online for Deluxe and Beyond Space members, and for anyone who'd joined the waitlist.

Beyond Space. There's also Beyond Space, an invitation-only concierge service for top customers, with a dedicated concierge during business hours. You can't sign anyone up to it. If someone mentions it, that's what it is.

You can't join. The terms say Space NK employees "may not participate in the Programme." So don't try to sign yourself up on your first day.

How to talk about it without being pushy

Here's the thing with a sign-up target. The scheme is genuinely good value for anyone who shops there more than once. Points, a birthday gift, early access. So the useful question isn't "do you want to join?" but "do you shop with us often?" If yes, it would be odd not to tell them. If they're a one-off visitor buying a present, say it's there and let them decide.

That's the educate, never sell way of hitting a target: tell people what's in it for them, clearly, and let them choose.

The app

Space NK launched its first shopping app in November 2025. It's UK only, on Apple and Android phones. The website says customers can use it to:

• "Instantly check your NDULGE Rewards and points balance"
• "Locate and collect products in store with ease"
• "Enjoy a year of next-day delivery for £10"

It did well. Space NK said the app delivered "more than three times its forecasted results" over Christmas 2025. Expect people to have questions about it, and expect some of them to show you their phone.

Delivery

UK delivery options on the help centre, as of September 2026:

• Standard (Royal Mail): £4, free on orders over £25, 2 to 5 working days.
• Priority Standard: £4.50, free on orders over £75.
• Next Day Delivery: £5.95.
• Limitless Beauty pass: £10 for a year of free delivery. It renews automatically unless cancelled (for passes bought on or after 9 August 2023). Worth mentioning if someone's buying it, so they're not surprised a year later.
• Click and Collect: free.

Space NK also ships to many other countries. The careers site says 56.

Click and Collect

• Orders placed before 2pm are ready in the chosen store within 2 to 4 days (Monday to Friday).
• Customers have 9 days to collect from the date it arrives in store.
• To collect, they need their Release Code, a copy of the collection email, and a form of ID.

That last point is the one that catches people out. Someone who turns up without the email or without ID is going to be disappointed, so if a friend or partner is collecting, it's worth checking they've got both.

Order and Pay

If a product isn't on the shelf, the help centre says "our Beauty Advisors can order it for you." One important catch: "Once an order is placed in-store, we're unable to make changes or cancel it." So check the shade, size and address carefully before it goes through.

Returns

Space NK's About page talks about a satisfaction guarantee alongside its 28-day returns policy. The details on the help centre:

• Unopened products: return within 28 days with proof of purchase for a full refund or exchange.
• Opened products: return within 28 days with proof of purchase. Returned in store, the customer can exchange the product or receive a gift card.
• Some payment methods can't be refunded or returned in store: ClearPay, PayPal, Klarna and Alipay.
• Gifts can be exchanged with proof of purchase, but can't be refunded or swapped for a gift card.
• Something already exchanged can't be exchanged or refunded again.

Your training will cover exactly how this works at the till. Learn it in your first week, and expect returns after Christmas.

The law, briefly. Which? says that for things bought in a shop, retailers "do not have to accept returns for store-bought, non-faulty items", but if they have a returns policy, "they must stick to it." Faulty goods are different: "You have the legal right to a refund if you return your faulty item within 30 days of receiving it, regardless of what the store's return policy says." So Space NK's policy is more generous than the law requires for things that aren't faulty.

Gift wrapping

Free gift wrapping is listed on the About page. Two exceptions from the help centre:

• Sale items bought online can't be gift wrapped.
• Advent calendar orders can't be gift wrapped.

Expect to be asked about it a lot in December. Offer it, and find out in training how gift receipts work in your store.

In-store services

What's on offer depends on the store. These are the ones the sources name:

• One-to-one consultations. The Princes Square listing promises "Expert advice and 1-2-1 complimentary beauty consultations from the team of beauty advisors". This is you.
• Events. Space NK runs "makeup masterclasses to brand launches, pop-ups, makeovers, skincare consultations and more". Check what's on at your store.
• Brand facials. For example, EVE LOM facials at various locations, with an £80 booking fee that's "redeemable against Eve Lom purchases made on the day."
• Treatment rooms and partners in some stores. A SkinCeuticals Treatment Room at Battersea, FaceGym at Canary Wharf and Covent Garden, and Margaret Dabbs foot treatments at Westbourne Grove. All in London, but customers sometimes ask.
• Personalised travel bags. Offered at Silverburn when it opened. Ask whether your store does it.
• Refill stations for Space NK's own hand and body products in some newer stores, such as Edinburgh St James Quarter.

Space NK's own label

Alongside the big brands, Space NK sells its own range. Its brand page lists travel bags, and bath, body and home fragrance collections, plus makeup brushes and accessories. When I looked there were 197 products, including 64 bags.

• The bags are the signature. A July 2026 article described the travel bag as "one of Space NK's most popular accessories". The website calls its makeup bags "the perfect travel buddies", and they come in different colours and sizes.
• The scents take inspiration from "dream destinations" and are described as gender-neutral.
• They're made for Space NK by other manufacturers, as its Modern Slavery Statement says.
• One made it into the 2026 advent calendar: Space NK Nordic Wilds Bubble Bath, 100ml.

At Christmas, own-label pieces are useful for anyone who wants a Space NK gift that isn't a specific brand.

The Beauty Advent Calendar

This is the product people will ask about before anything else.

The 2026 calendar:

• £275, described as "worth over £1,200".
• 35 products, including 26 full-size.
• No repeats from last year's calendar.
• Brands include Augustinus Bader, REFY and Hourglass. Contents listed include La Mer Crème de la Mer Moisturizing Cream (15ml), Charlotte Tilbury Beauty Light Wand in Pinkgasm, Olaplex No.3 PLUS, Rare Beauty Harmony Flexible Lifting Gel and Sol de Janeiro Rose Charmosa Dewy Body Cream.
• It earns 275 NDULGE points.

The rules (help centre):

• It went on sale online on 8 September 2026 for the waitlist and Deluxe members, and online and in store for everyone from 10 September, "while stocks last".
• Maximum five per customer in the UK and Ireland.
• Vouchers and discounts don't apply unless stated otherwise.
• It can only be returned if it's completely intact and in its original packaging.
• It can't be gift wrapped.

Will it sell out? The 2025 calendar sold out within two and a half weeks, and waitlist sign-ups for it were up 60 per cent on the year before. On 29 September 2026 the product page was showing a "Notify Me" button, which may mean it had sold out online. I couldn't confirm that. Find out what your store has before you tell a customer anything.

Other things customers will ask

• Black Friday. Space NK had a Black Friday 2026 sign-up page live in late September, but no dates had been announced. Black Friday 2025 was its biggest sales week ever, so expect it to be busy.
• Christmas gifts by price. The Christmas pages group gifts into under £30, under £50, under £100, and luxury. That's a useful way to think when someone gives you a budget.
• New brands. Exclusive launches are a big part of how Space NK stands out. Cécred, Beyoncé's hair care brand, launched in all stores on 22 September 2026. People will come in asking for it by name.

Remember this

• NDULGE: free, 16 and over, 1 point per £1, 100 points is a £5 reward.
• Deluxe: spend £1,000 in 12 months, and 100 points is worth £10.
• Vouchers last 3 months, points last 12 months.
• Click and Collect needs the Release Code, the email and ID.
• Returns: 28 days with proof of purchase. Check the details in training.
• Gift wrapping is free, except advent calendars and online sale items.
• Advent calendar: £275, 35 products, five per customer, returns only if intact.
• Your store's training and your manager always outrank this guide.

03Skin 101

Every conversation on the skincare floor comes back to the same few ideas: what skin is made of, what the barrier does, and the difference between the skin someone has and what's happening to it right now. Get those straight and the ingredients in the next chapter make sense.

Everything here comes from medical sources such as the NHS, the British Association of Dermatologists, DermNet, the American Academy of Dermatology and NICE, plus peer-reviewed research. Where something is a beauty-industry idea rather than a medical one, I've said so. Your Space NK training comes first.

How skin is built

Skin has three main layers.

• The epidermis is the outer layer. It's the main physical barrier. DermNet says it prevents "loss of water from the body" and prevents "entry of substances and organisms into the body."
• The dermis sits underneath. It holds collagen, which gives skin strength, and elastin, which gives it bounce. Cells called fibroblasts make the collagen. When a product talks about "firming", this is the layer it's aiming at.
• The subcutis is the fatty layer beneath both.

Two kinds of cell in the epidermis are worth knowing by name.

Keratinocytes are the main skin cells. They're made at the bottom of the epidermis and gradually move up to the surface, maturing as they go, until they're shed.

Melanocytes sit in the base of the epidermis and make melanin, the pigment that gives skin its colour. When a customer talks about dark marks or patches, melanin is what's involved.

The barrier

The very top of the epidermis is called the stratum corneum. DermNet describes it as dead, dried-out cells in a "bricks-and-mortar arrangement". The cells are the bricks. Fats, including ceramides, are the mortar.

The barrier works in two directions:

• Inside out: it keeps water in. Water escaping through the skin has a name, transepidermal water loss, usually shortened to TEWL. You'll see it on product claims.
• Outside in: it keeps out irritants, chemicals and microbes.

Two more facts that come up:

• Skin is slightly acidic. DermNet gives a normal surface pH of 4.5 to 5.5, and says the acidity matters for the barrier.
• Skin makes its own moisturiser. It's called natural moisturising factor, or NMF, and it comes from the breakdown of a protein called filaggrin. It helps the top layer hold water.

Cell turnover: the "28 days" claim

You'll hear that skin renews itself every 28 days. Be careful with that number.

One peer-reviewed review does give "around 26 to 28 days" for keratinocytes to mature. A different study calculated the turnover of the whole epidermis at 47 to 48 days. The answer depends on what's being measured.

So the safe line is: "Skin renews itself over about a month or more." Don't quote a precise figure. You'll also see claims about how much turnover slows at particular ages. I couldn't confirm those from a reliable source, so leave them alone.

Skin types and skin conditions

This is the most useful distinction in the whole chapter.

A skin type is broadly what someone is born with. A condition or concern is what's happening to the skin. Someone can have oily skin and a dry patch, or normal skin and a breakout.

The five types

Dermatologists usually use five types: dry, oily, normal, combination and sensitive.

• Dry: the skin isn't making enough sebum, the oily substance from the sebaceous glands.
• Oily: the skin makes too much sebum. People may notice enlarged pores, shine, blackheads or spots.
• Combination: oilier across the forehead, nose and chin (the T-zone), drier on the cheeks and around the eyes.
• Normal: balanced, with no particular sensitivities.
• Sensitive: covered below, because it's more complicated than it sounds.

Types aren't fixed forever. Genetics, age, hormones, stress, diet, activity and the environment can all shift them. So "what's your skin like at the moment?" is a better question than "what's your skin type?"

Dry versus dehydrated

You'll hear this a lot on the shop floor, so you need to know both what it means and where it comes from.

The beauty industry version goes: dry skin lacks oil and is a type; dehydrated skin lacks water and is a temporary state, which can happen even to oily skin.

That's a useful way to talk to customers. But it's an industry convention, not a medical category. When this was researched, the split came almost entirely from brand and clinic marketing. The NHS and DermNet don't use it. DermNet uses "dry skin" to mean skin lacking moisture in the stratum corneum, whatever the cause.

Use it as shorthand if it helps, but don't present it as medical fact.

What DermNet does say about dry skin: it's treated mainly with emollients (moisturisers), which work best on damp skin and when they contain humectants such as urea.

Sensitive skin

DermNet puts it plainly: "Sensitive skin is a lay term rather than a medical diagnosis." It describes skin that tolerates cosmetics and personal care products less well.

Some useful points:

• Stinging without any visible rash is a recognised thing. DermNet names lactic acid and propylene glycol in cosmetics as common causes.
• Eczema and dermatitis of every kind can make skin sensitive and easily irritated, because the barrier is disturbed. Those need medical treatment, not just gentle cosmetics.
• A true allergy to a product is different from irritation. It's identified by patch testing in a dermatology clinic.

So when a customer says "I've got sensitive skin", ask what actually happens: stinging, redness, itching?

Acne

Acne is a condition, not a skin type. The NHS calls it "a common skin condition causing spots that can range from mild to severe."

The NHS lists salicylic acid and benzoyl peroxide as treatments you can put on the skin, and suggests speaking to a pharmacist. In Great Britain, benzoyl peroxide is a medicine, not a cosmetic (the next chapter explains why that matters).

NICE, which writes guidance for the NHS, advises people with acne to avoid oil-based and comedogenic (pore-clogging) moisturisers and sunscreens. So "is it non-comedogenic?" is a fair question for an acne-prone customer, though no legal definition of that label was found.

Remember the claims rule from elsewhere in this guide: a cosmetic can't claim to "treat" acne. It can help keep pores clear and help prevent the odd spot.

Rosacea

The NHS describes rosacea as "a long-term skin condition that mainly affects the face." It can cause flushing, bumps, and "a burning or stinging feeling when using water or skincare products."

Two things to know:

• It can be harder to see on brown or black skin. The NHS says the redness may be less obvious.
• The NHS self-care advice includes a high SPF sunscreen of at least SPF 30 every day and gentle skincare products for sensitive skin.

Rosacea can't be cured, but a GP can help control it. If a customer describes rosacea-like symptoms and hasn't seen anyone, point them to a GP.

Pigmentation and melasma

Pigmentation problems come from melanin. Two kinds come up most.

Post-inflammatory hyperpigmentation is the dark mark left behind after a spot or other inflammation. DermNet says it's particularly common in skin of colour.

Melasma is "a bilateral, blotchy, brownish facial pigmentation", in DermNet's words. Bilateral means on both sides of the face.

• Hormones play a part. DermNet names pregnancy and hormonal contraception (pills, coils, implants) and hormone replacement therapy among the triggers.
• Sun matters a great deal. Both ultraviolet and visible light push melanin production up.
• It comes back. DermNet says that even after good treatment, pigmentation "may reappear on exposure to summer sun."
• DermNet advises year-round, life-long sun protection, specifically mentioning a very high protection (SPF50+) sunscreen containing iron oxides. Iron oxides are what make a sunscreen tinted.

Because melasma is a medical condition and it relapses, the right line is: cosmetics and sunscreen help with everyday care, and a GP or dermatologist can advise on treatment.

Ageing

The ageing skin concerns customers bring up (fine lines, freckling, sun spots) are closely tied to the sun. The British Association of Dermatologists says both types of UV are linked to skin ageing. The sun chapter covers that.

The strongest evidence for reducing visible sun damage is for a prescription medicine, tretinoin. DermNet says that used long term (more than six months) it can reduce freckling, sun spots and fine wrinkling. Cosmetic retinoids like retinol are its gentler, less studied relatives.

When you talk about ageing, use the language cosmetics are allowed to use: "helps reduce the appearance of fine lines". Never "removes wrinkles" or "reverses ageing".

Routines and the order of application

The order

The usual rule is thinnest to thickest. A dermatologist writing for Cleveland Clinic, a US hospital, puts it as "lightest to heaviest".

Be clear with yourself that this is expert opinion, not tested science. No trial has established the one correct order. But it's sensible, and it's what customers will expect you to know.

A simple morning routine

The minimum, according to that same dermatologist, is cleanser, moisturiser and sunscreen, in that order. Sunscreen goes on last.

A fuller version, pulled together from the sources:

1. Cleanse.
2. Toner or essence, if they like one (optional).
3. A serum such as vitamin C or niacinamide.
4. Moisturiser.
5. Sunscreen.

Vitamin C in the morning supports sunscreen, it doesn't replace it.

A simple evening routine

1. Cleanse, to take off sunscreen and makeup.
2. A treatment, such as a retinoid or an acid. Not both together. DermNet says salicylic acid and a retinoid shouldn't go on the same area unless a doctor says so. Alternating nights is common practice, not a medical rule, so if someone wants both, a pharmacist can advise.
3. Moisturiser.

Retinoids go at night because sunlight can deactivate them and they can make skin more sensitive to the sun.

Fewer is often better

The same dermatologist said: "The more products you use, the better the chances you're going to have side effects from them." He's also sceptical of toners, which he says can irritate sensitive skin.

The American Academy of Dermatology advises starting one product at a time, because using several new anti-ageing products together can irritate skin. That fits the approach in the shop floor chapter: one thing that fits their routine, not five.

How long to wait

The AAD says a moisturiser can plump up fine lines in a few days, but "most products take at least six weeks to work. Sometimes it can take up to three months." That's a useful thing to tell a customer who's disappointed after a fortnight.

Cleansing basics

The AAD's advice: a gentle, non-abrasive cleanser without alcohol, fingertips, lukewarm water, no scrubbing, and no more than twice a day plus after sweating.

Double cleansing

Double cleansing means an oil-based cleanser first, to take off makeup and sunscreen, then a water-based cleanser for sweat and dirt. It's a step often associated with Korean skincare.

The evidence: none was found that double cleansing is better for skin. At least one dermatologist is against it. The Cleveland Clinic dermatologist says, "Double cleansing causes more harm than good."

The fair line: "It's useful in the evening if you wear heavy makeup or water-resistant sunscreen. It isn't essential."

Patch testing

There are two very different things called patch testing, and it's worth keeping them apart.

The home test is what you'll suggest to customers. The AAD's current method: apply the product twice a day for seven to 10 days to a small spot where it won't be rubbed or washed off, such as the inside of the arm or the bend of the elbow. A different AAD page gives a shorter version, four to five days. Either is a sensible precaution.

Medical patch testing is done in dermatology clinics to find out exactly what someone is allergic to. If a customer has had a real reaction, that's a medical route; a GP can advise.

Three points to pass on:

• The AAD says some ingredients, such as retinol and glycolic acid, can irritate skin, "particularly if your skin is sensitive", and calls that "normal and temporary". Another AAD page says to "stop using a product that stings, burns, or tingles." If a customer isn't sure which theirs is, the safe advice is to stop and ask a pharmacist. Any swelling of the face, lips, tongue or throat, or difficulty breathing, is a 999 call, straight away (see the shop floor chapter).
• "Hypoallergenic" doesn't mean nobody will react. The AAD says, "Even hypoallergenic products can cause a skin reaction."
• If something causes a reaction, wash it off and stop using it.

Purging versus breakouts

"Purging" is the idea that a new product brings spots to the surface before skin improves.

What's established: the British Association of Dermatologists says some treatments, "such as retinoids", can make acne worse for a few weeks before it gets better. So it's real, at least for retinoids.

What isn't: you'll hear rules such as "purging only happens where you normally break out", "it lasts one skin cycle" or "only retinoids and acids can cause it." None of these was found in peer-reviewed research. No study was found that even defines "purging". Treat them as rules of thumb, and say so if you use them.

The safe line: stinging, burning, itching, redness or a rash aren't purging. They're a reaction, so stop the product. If ordinary redness or irritation doesn't settle, that's a pharmacist or GP. Any swelling of the face, lips, tongue or throat, or difficulty breathing, is different: that's 999, straight away, and tell a manager (see the shop floor chapter).

When to send someone to a pharmacist, GP or dermatologist

You can't diagnose, and you shouldn't try. This is the most important section in the chapter.

A good script: "That sounds like something a pharmacist or GP should look at."

Send them on when:

• Acne isn't improving with self-care, the spots are deep, painful or scarring, it looks infected, or it's affecting their mental health. These are the NHS's own triggers.
• Rosacea is suspected. A GP can help control it. If the eye is painful or vision is blurred, that's urgent: the NHS says these could be signs of a serious eye problem that needs treating quickly.
• A mole has changed size, shape or colour, is inflamed, bleeding or crusty, or there's a new or unusual mark that hasn't gone after a few weeks. Never comment on whether a mole looks safe. It goes to a GP, every time.
• A product has caused a reaction. Stop the product. Redness or irritation that doesn't settle goes to a pharmacist or GP, and a suspected allergy can be identified by patch testing in a dermatology clinic. Any swelling of the face, lips, tongue or throat, or difficulty breathing, is 999, straight away, and tell a manager (see the shop floor chapter).
• Eczema or dermatitis is involved. These need medical treatment, not just cosmetics.
• Melasma, or pigmentation that's worrying them.
• Pregnancy, breastfeeding or medication comes up. Always midwife, GP or pharmacist.

Then help with what's in your lane: gentle everyday care and sun protection.

Remember this

• Epidermis, dermis, subcutis. The barrier is bricks and mortar: water in, irritants out.
• Skin renews over about a month or more. Don't quote "28 days" as fact.
• Type is broadly what you're born with; condition is what's happening now.
• Dry versus dehydrated is industry shorthand, not a medical category.
• Thin to thick, sunscreen last in the morning, retinoids at night.
• Double cleansing and purging rules are opinion, not proven science.
• Can't diagnose. A changing mole: GP. A painful eye: urgent help. Reactions: pharmacist or GP, but swelling or breathing trouble is 999. Pregnancy: midwife, GP or pharmacist.
• Swelling of the face, lips, tongue or throat, or trouble breathing: 999, straight away.

04The Ingredients Customers Ask About

This is the chapter you'll come back to most. Customers often arrive knowing an ingredient's name already. They want to know what an ingredient does, whether it works, and whether they can use it with the other things they already have.

Each ingredient follows the same pattern, so it's easy to revise and to listen to:

• What it is.
• What it's for.
• The evidence, said plainly.
• Starting it.
• Be careful, including pregnancy.
• Combining.

Three rules before we start

First, a cosmetic can improve the appearance of skin. It can't treat a medical condition. When the evidence below mentions acne or melasma, it usually comes from medicines, or from trials of one particular formula. It doesn't mean the jar on the shelf will do the same. What a product does is the brand's claim: "designed to", "the brand says".

Second, go low and slow with anything strong. NICE, which writes guidance for the NHS, gives a good script for irritating acne treatments, and it works for any strong active: start with "alternate-day or short-contact application (for example washing off after an hour)."

Third, pregnancy and breastfeeding questions always go to a midwife, GP or pharmacist. Where I say nothing useful about pregnancy for an ingredient, that's because no authoritative guidance was found. It doesn't mean it's safe. Never say "this is safe in pregnancy."

Retinoids

Retinoids are the family most customers ask about, and the one with the most confusion. So this section is longer than the rest.

What they are. Retinoids are forms of vitamin A. They work at a cellular level, switching on genes in skin cells through specific receptors. The family includes:

• Retinyl esters, such as retinyl palmitate. More stable and better tolerated than retinol.
• Retinol. The one on most shelves.
• Retinal, also called retinaldehyde.
• Tretinoin, also called retinoic acid. The active form, and prescription only.

In skin, retinol is converted to retinal, and retinal is converted to retinoic acid (tretinoin), which is the form that does the work. That chain describes how the body processes them. It isn't a strength ranking, so don't tell a customer retinal is "stronger" than retinol.

Retinol and retinal are the cosmetic ones. Tretinoin, adapalene and several others are prescription medicines.

What they're for. Visible sun damage and ageing: fine lines, uneven pigmentation, texture. As medicines, some are also used for acne.

The evidence.

• Tretinoin is the benchmark. A published review calls it the "gold standard" for skin rejuvenation, and a 2024 systematic review found that most studies comparing other treatments against it were poor quality. DermNet says long-term use (more than six months) can reduce freckling, sun spots and fine wrinkling. But it's prescription only.
• Retinol: moderate evidence. One well-known randomised trial found that 0.4 per cent retinol improved fine wrinkles on elderly people's arms over 24 weeks.
• Retinal: moderate, but less studied than retinol.
• Retinyl esters: weakest. They're stable and well tolerated, but a 2025 review found "little evidence" that they improve sun-aged skin on their own.
• Retinol and retinal are considerably less irritating than tretinoin.
• Results take months. DermNet says it may take 12 weeks or longer (said of acne).

You'll see claims like "retinal works 11 times faster than retinol", and typical retail retinal strengths quoted. These came only from brand marketing and couldn't be confirmed. Don't repeat them.

Tretinoin and the law. In Great Britain, tretinoin is banned from cosmetics. It's on the list of prohibited substances in the GB Cosmetics Regulation. So anything on a Space NK shelf isn't tretinoin, whatever the marketing says about being "like" it.

The retinol rules: where things stood in September 2026. This is changing, so learn it as a snapshot.

• In the EU, a regulation from 2024 caps retinol, retinyl acetate and retinyl palmitate at 0.3 per cent retinol equivalent in face and most other products, and 0.05 per cent in body lotion. Products must carry the warning "Contains Vitamin A. Consider your daily intake before use."
• EU dates: from 1 November 2025, products that don't comply can't be newly placed on the EU market. From 1 May 2027, they can't be sold there at all.
• Why the limit exists: it isn't because retinol is unsafe on skin. It's about total vitamin A exposure from food plus cosmetics. The EU's scientific committee concluded vitamin A is safe in cosmetics up to those concentrations.
• Retinal isn't covered. The EU rule names only retinol, retinyl acetate and retinyl palmitate.
• In Great Britain, which includes Glasgow, no legal limit on retinol concentration had been found as at 29 September 2026. Every GB cosmetics restriction from 2024 to 2026 was checked, and none mentions retinol or vitamin A.
• But it's under review. The UK's product safety office, OPSS, called for safety data on vitamin A, with a deadline extended to 30 June 2026. That call has closed, so a GB limit could follow.

What that means on the shop floor: shelves in Great Britain may carry retinol above 0.3 per cent, and some stock made for Europe may have been reformulated to 0.3 per cent or below. If a customer asks, say "in the EU there's now a limit; in Great Britain there wasn't one in September 2026, but it's being reviewed." Check with your managers for anything newer.

One more thing: the American Academy of Dermatology points out that there's no standard requirement to put the retinol percentage on the label. So you often can't compare strengths from the packaging.

Starting it.

• The least intense formula first, every other night, building up slowly. That's the AAD's advice.
• At night only.
• Sun protection every day.
• Warn them that spots can briefly get worse. The British Association of Dermatologists says retinoids can make acne worse for a few weeks before it improves. (See purging in the Skin 101 chapter.)

Be careful.

• Very red, inflamed, dry or allergy-prone skin. The AAD says these people are probably not good candidates, and that anyone with a lot of redness or inflammation should avoid retinoids. That includes suspected rosacea.
• Eczema. DermNet says retinoids can make it worse.
• Deeper skin tones. The AAD notes that in skin of colour, irritation itself can trigger dark marks. Another reason to go slowly.
• Pregnancy: dermatologists advise avoiding retinoids, including over-the-counter retinol. NICE says topical retinoid combinations aren't for use in pregnancy or breastfeeding. The evidence of harm from skin use is limited, but the advice is still to avoid. Your line: "Most experts advise avoiding retinoids in pregnancy, and NICE says some aren't for use while breastfeeding. Check with your midwife, GP or pharmacist."

Combining.

• Retinoid plus acids or scrubs: a real irritation risk, so not together. DermNet's salicylic acid guidance says not to apply a retinoid to the same area unless a doctor says so. Alternating nights is a common approach, but it's shop-floor practice, not a rule from a medical source, so a customer who wants a retinoid and an acid should check with a pharmacist.
• Prescription tretinoin plus benzoyl peroxide: a real chemical problem. A lab study found benzoyl peroxide plus light broke down more than half the tretinoin in about two hours. The same study found adapalene stable. Whether this applies to cosmetic retinol wasn't confirmed.
• Retinol plus vitamin C: mostly a myth, but the evidence is thin either way. No peer-reviewed study was found showing harm, or showing a benefit from combining them. The sensible advice is vitamin C in the morning and retinol at night, for comfort, not because they "cancel out".

Bakuchiol

What it is. A plant compound, marketed as a gentler alternative to retinol. It's not a retinoid chemically. Researchers describe it as a "functional analogue", meaning it may behave similarly.

What it's for. Fine lines and pigmentation, as a retinol alternative.

The evidence. Promising but small. One randomised trial of 44 people over 12 weeks compared 0.5 per cent bakuchiol twice a day with 0.5 per cent retinol once a day. Both reduced wrinkles and pigmentation, with no statistical difference between them, and the retinol users reported more scaling and stinging. One trial of 44 people doesn't prove the two are equivalent. Say "early evidence suggests", never "as good as retinol".

Starting it. No specific guidance was found. The general one-product-at-a-time rule applies.

Be careful. Bakuchiol is often marketed as "pregnancy safe". No authoritative source (NHS, BAD or AAD) was found confirming that. Don't claim it. Send pregnancy questions to a midwife, GP or pharmacist.

Combining. No specific rules found.

Vitamin C

What it is. The purest form is L-ascorbic acid. Because it's unstable and oxidises, chemists have made many derivatives: magnesium ascorbyl phosphate, ascorbyl glucoside, tetrahexyldecyl ascorbate, ethyl ascorbic acid and others.

What it's for. Antioxidant protection against UV damage, brightening and evening out discolouration, and supporting collagen.

The evidence.

• L-ascorbic acid: moderate. A 2026 systematic review called it "the most clinically validated formulation". (One author declared consultancy for cosmetics companies.)
• To get into skin, L-ascorbic acid has to be formulated at a low pH, below 3.5. In a classic study on pig skin, 20 per cent was the maximum concentration for best absorption.
• Derivatives: weak to moderate. Most of the research on them is lab-based. That same classic study found some derivatives (magnesium ascorbyl phosphate, ascorbyl palmitate) didn't raise vitamin C levels in skin. The 2026 review said tetrahexyldecyl ascorbate is preferred for sensitive skin, and ascorbyl glucoside is well tolerated for long-term pigmentation.
• Ethyl ascorbic acid: little clinical evidence found, and there are case reports of allergic reactions to it.
• Vitamin C with vitamin E and ferulic acid: a lab study found ferulic acid stabilised the mixture and doubled its protection against UV redness. It is not a sunscreen.
• A big caveat: a 2017 review said the benefit of putting vitamin C on skin, compared with simply eating enough of it, is "poorly understood."

Starting it. In the morning, under sunscreen. A dermatologist quoted by Cleveland Clinic says vitamin C "reinforces your sunscreen ... it does not replace it."

Be careful. Anyone who's had a reaction to ethyl ascorbic acid. For sensitive skin, the gentler derivatives may suit better.

Pregnancy: an AAD dermatologist suggests a vitamin C product in the morning during pregnancy. Still send the customer to their midwife, GP or pharmacist to confirm.

Combining.

• With retinol: see retinoids. Split morning and night for comfort.
• With niacinamide: you'll hear they "cancel each other out" or cause flushing. That's widely called a myth, based on old experiments with unstabilised forms. But every source found, either way, was a brand or retailer blog. So: "They're commonly used together. If your skin flushes, use them at different times."

Niacinamide

What it is. The water-soluble active form of vitamin B3. Also called nicotinamide.

What it's for. Supporting the barrier, oil control, spots, blotchiness and fine lines.

The evidence. Moderate: several trials, some funded by industry. DermNet's overall view is that it's promising but "more research is needed."

• Barrier: DermNet says it can reduce water loss through the skin and increase hydration.
• Oil and spots: in one trial of 76 people with moderate acne, 4 per cent niacinamide gel did as well as a 1 per cent antibiotic gel. A 2 per cent moisturiser used for four to six weeks reduced oil production.
• Ageing and blotchiness: a 5 per cent study found improvements in fine lines, pigmentation, texture and red blotchiness. That study was sponsored by Procter and Gamble.
• For acne specifically, a 2020 Cochrane review of acne trials rated the niacinamide evidence low quality.
• Strength: the research mostly uses 2 to 5 per cent. Many serums use 10 per cent, but no evidence was found that 10 per cent works better than 5.

Starting it. It's well tolerated. DermNet says it can often be used by people who can't tolerate retinoids or acids. That makes it a good suggestion for a nervous first-timer.

Be careful. It is not a sunscreen and doesn't prevent sunburn. DermNet is explicit about that.

Combining. See vitamin C above.

AHAs: glycolic, lactic and mandelic acid

What they are. Alpha hydroxy acids. They exfoliate, shedding the surface layer of skin. How strongly depends on the type of acid, the concentration, the pH and the rest of the formula. Glycolic and lactic are the most common.

What they're for. Exfoliation.

The evidence.

• They do exfoliate. That's well established.
• For acne, the Cochrane review found only low-quality evidence.
• Mandelic acid: thin. One small study of 24 people over four weeks, with no comparison group, by the doctors who developed the formula. You'll hear that mandelic is "better for darker skin because it's a bigger molecule". That couldn't be confirmed from an authoritative source, so don't say it.

Starting it. The general low and slow rule.

Be careful.

• Safety ceiling. A US industry safety panel, cited by the US regulator (the FDA), concluded AHAs are safe at 10 per cent or less, at a pH of 3.5 or above, with sun protection. That's a US industry view, not UK law. No GB or EU legal cap on glycolic or lactic acid was found.
• Sun sensitivity is real. FDA studies found that after four weeks of AHA use, skin's sensitivity to UV reddening went up by 18 per cent. It returned to normal about a week after stopping. The FDA's recommended label wording: "Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards."
• Lactic acid can sting sensitive skin. DermNet names it as a common cause of stinging.
• Pregnancy: an AAD dermatologist suggests glycolic acid in the evening for pregnancy pigmentation. Still refer to midwife, GP or pharmacist.

Combining. Not together with a retinoid (see retinoids: alternating nights is common practice, not a medical rule, so a pharmacist can advise). Not stacked with other strong exfoliants. Always with daily sunscreen.

BHA: salicylic acid

What it is. Salicylic acid. It's sold as a "BHA", but the FDA points out that chemically it isn't a true beta hydroxy acid. It's a marketing term that stuck.

What it's for. Spots, blackheads and whiteheads. DermNet says it slows the shedding of cells inside the pores so they don't clog, and helps break down blackheads and whiteheads.

The evidence. The NHS lists it as an acne treatment you can buy. But the Cochrane review rated the acne evidence low quality.

Legal limits in Great Britain. In the GB Cosmetics Regulation, salicylic acid is capped at:

• 3 per cent in rinse-off hair products.
• 2 per cent in other products.
• 0.5 per cent in body lotion, eyeshadow, mascara, eyeliner, lipstick and roll-on deodorant.
• Not for children under three, except in shampoo.

So a face product in Great Britain above 2 per cent is outside the cosmetic limit.

Starting it. The general low and slow rule.

Be careful.

• You may hear that people allergic to aspirin should avoid it. That's commonly said, but it wasn't found on the NHS or DermNet pages checked. Send those customers to a pharmacist.
• Pregnancy: the AAD lists high doses (above 2 per cent) among things to limit. DermNet says to tell your doctor if you're pregnant or breastfeeding, because salicylic acid can be absorbed through the skin. Refer to midwife, GP or pharmacist.

Combining. DermNet says not to apply other medicated products to the same area, naming benzoyl peroxide and retinoids, unless a doctor says so. That's the rule for salicylic acid and a retinoid: not on the same area, and a pharmacist question if they want both.

PHAs: gluconolactone and lactobionic acid

What they are. Polyhydroxy acids, described as a newer generation of AHAs.

What they're for. Gentle exfoliation, with added moisturising.

The evidence. Weak to moderate. The main review dates from 2004 and appeared in a journal supplement. It says PHAs give similar effects to AHAs without the stinging, and are compatible with sensitive skin, including rosacea and eczema. Whether it was industry-funded isn't stated. So say "reported to be gentler".

Starting it and being careful. No specific guidance beyond the general rules.

Combining. Treat like any exfoliating acid: not stacked with other strong actives.

Azelaic acid

What it is. A dicarboxylic acid with anti-inflammatory and antioxidant properties.

What it's for. DermNet says it's effective for acne and for the bumpy kind of rosacea, and helps reduce pigmentation. It's "particularly useful for darker skinned patients" whose spots leave brown marks, or who have melasma.

The evidence. Better studied, as a medicine. The medicine strengths are a 20 per cent cream and a 15 per cent gel. The Cochrane review says for acne it's probably about as effective as tretinoin, and probably less effective than benzoyl peroxide.

Cosmetic products with lower amounts of azelaic acid exist. Whether they work the same way as the medicines isn't known.

Starting it. DermNet says acne usually improves after about four weeks. Rosacea may need up to 12 weeks.

Be careful. It can irritate very sensitive or eczema-prone skin. Pregnancy: no authoritative answer was found. Refer to a midwife, GP or pharmacist.

Combining. No specific rules found.

Benzoyl peroxide

What it is. An acne treatment. In Great Britain it's a medicine, not a cosmetic. The GB Cosmetics Regulation only allows it in professional artificial nail systems. The NHS calls it "a medicine used to treat acne" that you can buy in shops and pharmacies or get on prescription.

So if you ever see a benzoyl peroxide product, it's a licensed medicine, and advice about it should come from a pharmacist. If a customer asks about it, point them to a pharmacy.

What it's for. Acne. It comes as creams, gels, lotions and washes at 2.5, 5 and 10 per cent.

The evidence. Well established as a medicine. The NHS says it usually starts to work within four weeks.

Be careful.

• It makes skin more sensitive to sunlight.
• It bleaches fabric. The NHS warns it can bleach clothing, other fabrics and hair.
• You may hear worries about benzene. DermNet says benzene hasn't been found in the blood of people using it, but advises replacing old products.
• Pregnancy: the NHS says it can usually be used, "but it's best to check." The AAD lists it among things to limit. Sources differ, so this is a midwife, GP or pharmacist question.

Combining. Not with prescription tretinoin at the same time (see retinoids). Not layered with other medicated products on the same area unless a doctor says so.

Hyaluronic acid and glycerin

These two go together because they do the same basic job.

What they are. Humectants: ingredients that draw in water. Basic moisturisers typically combine humectants, which attract water, with occlusives such as petrolatum or liquid paraffin, which seal it in.

What they're for. Hydration.

The evidence.

• Glycerin: a standard, well-established humectant. A 2025 dermatology review lists it among the humectants that basic emollients for dry skin typically contain. That shows it's a mainstay of recommended moisturisers; no trials of glycerin itself were reviewed for this guide.
• Hyaluronic acid: moderate for hydration, weak for anti-ageing. Size matters. Small (low molecular weight) hyaluronic acid passes through the top layer of skin; large molecules stay on the surface. A small trial of 36 older people found the low molecular weight version hydrated dry legs better than the high molecular weight version.
• You'll hear that hyaluronic acid "holds 1,000 times its weight in water". That's a marketing line; no authoritative source confirmed it. The claim that it "pulls water out of your skin in dry air" wasn't confirmed either. Leave both alone.

Starting it. No special rules.

Be careful. Keep one distinction clear: hyaluronic acid in a serum is a cosmetic. Hyaluronic acid fillers injected in a clinic are a completely different thing.

Combining. No specific rules found.

Ceramides

What they are. Fats that form part of the barrier's "mortar". Low ceramide levels are linked to eczema.

What they're for. Supporting the barrier.

The evidence. Moderate but modest. A small analysis of five studies in eczema found ceramide moisturisers did better than other moisturisers on symptom scores, but made no clear difference to water loss. So say "supports the barrier", never "repairs eczema".

Starting it, being careful and combining. No specific rules found. Anyone with eczema should have medical advice too.

Peptides

What they are. A family of ingredients that come in several kinds:

• Signal peptides are meant to "tell" skin to make collagen.
• Carrier peptides deliver trace metals such as copper. Copper peptide (GHK-Cu) is one example.
• Neurotransmitter-type peptides are marketed as "Botox-like", relaxing expression lines. That comparison is marketing; nothing confirmed a comparable effect.

What they're for. Firmness and fine lines, according to the brands.

The evidence. Weak. A 2017 review said clinical evidence is "often weak", absorption may be poor, and "prices can be quite high." There's no approval process before cosmetic peptides go on sale. Copper peptide evidence is mostly from the lab and animals.

Starting it, being careful and combining. No specific rules found. Describe peptides by what the brand says they're designed to do, and don't promise results.

Antioxidants in general

What they are. Ingredients such as vitamin C, vitamin E and ferulic acid.

What they're for. UV light creates reactive molecules (free radicals) that damage skin. Antioxidants may help protect against them.

The evidence. It varies by molecule and formula. The strongest data are for vitamin C, especially with vitamin E and ferulic acid.

Be careful. Antioxidants are an add-on to sunscreen, never a replacement. No serum is a sunscreen unless it's labelled with an SPF.

Tranexamic acid

What it is. Originally a medicine for heavy periods. Dermatologists have used it off-label for melasma.

What it's for. Pigmentation, particularly melasma.

The evidence. For topical products, the kind you'll sell: low to moderate. A 2024 analysis found it helps melasma, but the strongest effect was from tablets (prescription), then injections, then creams, and the studies varied a lot. A 2022 review called topical tranexamic acid promising but said more trials are needed.

Be careful. Tablets have possible clotting risks and are a prescription matter. Never discuss tablets or dosing. If a customer asks, that's a GP. Melasma itself is a medical condition, so point them to a GP or dermatologist for treatment.

Combining. No specific rules found.

Centella asiatica ("cica")

What it is. A traditional medicinal herb. Its active compounds include asiaticoside and madecassoside, names you'll see on labels.

What it's for. Soothing, according to the brands.

The evidence. Weak to moderate. It's mostly lab and animal work, and a 2021 review said longer, well-controlled human trials are still needed. Don't say it heals eczema or wounds.

Starting it, being careful and combining. No specific rules found.

Squalane

What it is. Squalene is a natural oil in human sebum. Squalane is its stable form, used as a lightweight emollient (moisturiser).

Squalene is found in some fish oils, especially shark liver oil. Whether a product's squalane is plant-derived is something to check with the brand.

What it's for. Moisturising.

The evidence. Fine as a moisturiser. Its other reported effects come mainly from animal and lab studies, so there's no strong evidence for special benefits beyond moisturising.

Starting it, being careful and combining. No specific rules found.

Snail mucin

What it is. Snail secretion filtrate. A K-beauty favourite.

What it's for. Fine lines, hydration and texture, according to the brands.

The evidence. Weak. One randomised trial of 50 women, funded by the ingredient maker. Both the snail group and the comparison group improved. The authors themselves called for larger studies.

Be careful. It isn't vegan. Worth knowing if a customer asks.

Starting it and combining. No specific rules found.

PDRN and exosomes

These are the newest trends, and the evidence hasn't caught up.

PDRN (polynucleotides, "salmon DNA")

What it is. Ingredients made from DNA, usually described as "salmon DNA".

The evidence. Most of it is for injections in clinics, not creams, and it's low to moderate quality. A 2025 review of nine studies covering 219 patients called for rigorous, high-quality research. Two of its authors had links to polynucleotide companies or clinics. For creams, one 2026 study of an eye cream reported benefit over 28 days, but said the way topical PDRN works and gets into skin remains "insufficiently defined."

Plain verdict: early, and mostly from injections. Topical products are a trend ahead of the evidence.

Exosomes

What they are. That's the first problem. The word is used loosely: a 2026 review said products called exosomes aren't always shown to be true exosomes.

The evidence. A 2026 review found human studies on topical exosomes "remain scarce", with much of the evidence taken from lab models. Commercial products gave little information on how the exosomes were made or how long they last.

Be careful. Adverse reactions have been reported with unapproved exosome products, mainly injected ones in clinics. Whether a product's exosomes come from plants or elsewhere isn't always clear, so check with the brand.

Plain verdict: very little human evidence; mostly lab work.

Starting and combining, for both. No specific rules found.

Probiotics and postbiotics

What they are. Skincare based on the skin's own community of microbes (the microbiome). Probiotics are the bacteria; postbiotics are the things they produce.

What they're for. Supporting the barrier and calming skin, according to the brands.

The evidence. Weak and emerging. A 2023 review's language is careful: "some research suggests" certain strains "may" help the barrier, reduce inflammation and improve the look of acne-prone or eczema-prone skin. You'll often hear that most "probiotic" skincare contains no live bacteria, only lysates or ferments. That's widely said but wasn't confirmed from a primary source.

Starting it, being careful and combining. No specific rules found.

Combining: what's real and what's myth

Customers ask about combinations constantly. Here's the short version.

Real:

• Retinoid plus an acid. A real irritation risk, so not together. Salicylic acid and a retinoid: DermNet says not on the same area unless a doctor says so. Alternating nights is common practice, not a medical rule.
• Several strong exfoliants at once. A real irritation risk.
• Prescription tretinoin plus benzoyl peroxide at the same time. A real chemical interaction: the tretinoin breaks down. Adapalene is stable.
• Any acid or retinoid without sunscreen. A real problem.

Largely myth, but unproven either way:

• Retinol and vitamin C. Split morning and night for comfort, not because they cancel out.
• Niacinamide and vitamin C. Commonly used together. If skin flushes, separate them.

Evidence at a glance

Established medicines (prescription or pharmacy, not cosmetics):

• Tretinoin (prescription only, banned from cosmetics in Great Britain).
• Benzoyl peroxide (a medicine in Great Britain).
• Azelaic acid at medicine strengths, 15 and 20 per cent.

Standard and well established, on the shelf:

• Glycerin, a basic humectant in recommended moisturisers.

Moderate:

• Retinol.
• Retinal (less studied than retinol).
• L-ascorbic acid vitamin C.
• Niacinamide (some trials industry-funded).
• Hyaluronic acid, for hydration only.
• Ceramides (modest benefit).

Low to moderate, or mixed:

• Salicylic acid and AHAs for acne (Cochrane rates it low quality, though they clearly exfoliate).
• Vitamin C derivatives.
• PHAs.
• Topical tranexamic acid.
• Centella.

Weak or early:

• Bakuchiol (one small trial).
• Retinyl esters on their own.
• Mandelic acid.
• Peptides, including copper peptide.
• Snail mucin.
• PDRN.
• Exosomes.
• Probiotics and postbiotics.
• Squalane, beyond simple moisturising.

Remember this

• Retinol becomes retinal, then tretinoin (prescription only). That's a chain, not a strength ranking.
• EU caps retinol at 0.3 per cent. Great Britain had no limit in September 2026, but it's under review.
• Low and slow, at night, with sunscreen every morning.
• Retinoids in pregnancy: most experts say avoid. Midwife, GP or pharmacist.
• Benzoyl peroxide is a medicine in Great Britain. Send them to a pharmacy.
• Retinoid and acid: not together. Salicylic acid and a retinoid: not on the same area unless a doctor says so.
• Retinol plus vitamin C is mostly myth: split morning and night for comfort.
• PDRN, exosomes and snail mucin: a trend ahead of the evidence.

05Sun Protection

Sunscreen is one of the few products on the shelf where the science is clear and the stakes are real: skin cancer, not just wrinkles. It's also where customers are most confused, because the labels use three different rating systems and the advice for the UK is more nuanced than most marketing suggests.

Everything here comes from the NHS, the British Association of Dermatologists (BAD), Cancer Research UK, the American Academy of Dermatology (AAD), DermNet, EU texts and Japan's cosmetics industry body. Your Space NK training comes first.

UVA and UVB

Two kinds of ultraviolet light reach us through the atmosphere: UVA and UVB.

The BAD says both are linked to skin ageing and skin cancer, and UVB is largely responsible for sunburn.

They also reach different depths. Cancer Research UK says:

• UVA reaches deeper, into the dermis.
• UVB reaches the outer layer, the epidermis, and causes most sunburn.

A simple way to remember it: UVB burns, UVA goes deeper. Both matter.

Three facts customers are often surprised by:

• Clouds don't stop it. Cancer Research UK says over 90 per cent of UV rays can pass through cloud.
• The UK season is longer than people think. Cancer Research UK says the sun is often strong enough to cause damage in the UK between mid-March and mid-October, "even when it's cold or cloudy."
• Windows. If someone sits by a window for long periods, Cancer Research UK suggests protecting skin with clothes, a hat and UV-protection sunglasses.

What SPF measures

SPF measures UVB protection only. The NHS says SPF stands for sun protection factor and is "a measure of the amount of ultraviolet B radiation (UVB) protection."

SPFs run from 2 to 50+, with 50+ the strongest UVB protection.

The AAD says an SPF 30 blocks 97 per cent of UVB rays. That's under test conditions, applied at the test amount, which matters later in this chapter.

You'll also see words on the label. An EU recommendation from 2006 sets out categories:

• Low: SPF 6 to 10.
• Medium: SPF 15 to 25.
• High: SPF 30 to 50.
• Very high: SPF 50+.

The same recommendation says a sunscreen shouldn't claim or suggest "total protection". It dates from before Brexit, and exactly how it applies in Great Britain today wasn't confirmed, though UK products still use these categories in practice.

The UK minimum to recommend: the NHS says at least SPF 30 and at least 4-star UVA protection. You may see US sources quote SPF 15. Use the UK figure.

UVA ratings: stars, circles and PA

Because SPF only covers UVB, UVA has its own ratings. There are three you'll see on the shelf.

The UK star rating

Most UK sunscreens show UVA protection as stars, up to five. The NHS says the higher the star rating, the better. The BAD recommends choosing 4 or 5 stars.

You'll sometimes hear the exact ratios behind each star quoted, and that the system started with Boots. Neither could be confirmed from a primary source, so leave the detail out.

The EU UVA circle

A circle with "UVA" inside it means the product meets the EU minimum standard for UVA protection, according to Cancer Research UK.

That minimum, from the EU recommendation, is that the UVA protection is at least a third of the SPF.

The BAD adds that SPF and UVA protection are linked, so a higher SPF sunscreen will have more UVA protection.

PA ratings

You'll see PA on Japanese and Korean sunscreens. It's a Japanese grading of UVA protection, from PA+ up to PA++++, based on a measured UVA protection factor. Japan's cosmetics industry association sets the grades:

• PA+: UVA protection factor of 2 or more, but less than 4.
• PA++: 4 or more, but less than 8.
• PA+++: 8 or more, but less than 16.
• PA++++: 16 or more.

A PA rating must always appear alongside an SPF.

Korea is widely said to use the same system, but that wasn't confirmed from a Korean regulator.

Can you convert PA to stars? No. They measure UVA in different ways, and there's no official conversion. If a customer asks whether PA++++ equals five stars, the accurate answer is: "They're measured differently, so there isn't a direct match."

Chemical and mineral filters

Some customers ask for "mineral" or "chemical-free" sunscreen. Here's what's behind that.

• Chemical (organic) filters absorb UV and turn it into harmless warmth.
• Mineral (inorganic) filters are zinc oxide and titanium dioxide. The BAD says they both absorb and scatter UV. The AAD calls them physical sunscreens.
• Most sunscreens contain a mix of both, according to the BAD.

On sensitive skin, the AAD says dermatologists recommend mineral sunscreens.

On safety, the BAD says expert reviews have concluded sunscreen ingredients "do not pose a concern for human health", although sunscreens can occasionally cause irritation or allergy.

One phrase to avoid: "chemical free". Zinc oxide and titanium dioxide are chemicals too. The BAD calls them "inorganic chemicals". Say "mineral" instead.

How much to apply

This is where most people fall short.

Sunscreens are tested at 2 milligrams per square centimetre of skin. The EU text says that works out at about 6 teaspoons (about 36 grams) for an average adult's body, and that this "is higher than that usually applied by the consumers."

The NHS guide is 6 to 8 teaspoons to cover an adult's whole body. The AAD's version is about enough to fill a shot glass.

The NHS is clear about why it matters: "If sunscreen is applied too thinly, the amount of protection it gives is reduced." So the 97 per cent figure for SPF 30 only holds if people use enough.

For the face alone, you'll hear "two finger lengths" or "a quarter teaspoon". Neither was found in NHS, BAD, Cancer Research UK or EU guidance. If you use them, call them a common rule of thumb, not official advice.

Reapplying

The NHS advice:

• Apply twice before going out: about 30 minutes before, and again just before.
• Reapply every 2 hours, because the sun can dry it off the skin.
• Reapply straight after swimming, even if it's "water resistant", and after towel drying, sweating or anything that may rub it off.
• Don't use sunscreen as a reason to stay out longer. The NHS says: "Do not spend any longer in the sun than you would without sunscreen."

And check the date. Sunscreen has an expiry date, and an open jar symbol with an M and a number showing how many months it lasts once opened.

SPF in makeup and moisturisers

Customers love a moisturiser or foundation with SPF, and there's nothing wrong with that. But be clear about what it does.

SPF moisturisers. The BAD says that in theory an SPF 15 moisturiser gives SPF 15 protection, but "in reality, the protection you receive is much lower." It adds that many moisturisers don't protect against UVA.

The BAD's practical line is useful: an SPF moisturiser helps with small amounts of UV, "such as when you walk to the car or pop outside to hang out the washing, but sunscreen is better for longer, more deliberate UV exposure."

SPF foundation. Cancer Research UK says you'd need to apply several times the normal amount of foundation to get anywhere near the protection on the label.

Two things you'll hear that couldn't be confirmed:

• That SPFs "don't add up" (so SPF 30 sunscreen plus SPF 15 foundation isn't SPF 45). Widely taught, but not found in the sources checked.
• How well SPF powders and mists protect in real life, for topping up. No authoritative source was found.

So the safe advice: SPF in makeup is a nice extra, not a replacement for sunscreen.

Sunscreen with retinoids and acids

This is where daily SPF becomes important for many of your customers, whatever the season.

• AHAs (glycolic, lactic) increase sun sensitivity while you use them and for about a week after. The US regulator's recommended label says to use sunscreen, cover up and limit sun "while using this product and for a week afterwards."
• Retinoids can make skin more sensitive to the sun. The AAD's advice is to use them at night only and always use sun protection during the day.
• Benzoyl peroxide makes skin more sensitive to sunlight, according to the NHS.
• Melasma needs year-round protection. DermNet says both UV and visible light push up melanin production, and recommends a very high protection (SPF50+) sunscreen containing iron oxides, which makes it tinted.
• Rosacea: the NHS self-care advice includes SPF 30 or higher every day.

No serum is a sunscreen unless it's labelled with an SPF. Vitamin C and niacinamide don't replace it.

Do people in Scotland need sunscreen every day?

This is the question to get right, because customers will hear different answers and you want to give the accurate one.

The British Association of Dermatologists' position is more nuanced than much beauty marketing:

• "Year-round sunscreen use is unnecessary in the UK, except for people with certain medical conditions. In winter months in particular the UV index does not get high enough for it to be beneficial."
• For people with white skin, the BAD recommends sun protection when the UV index is 3 or more (shown as "medium" on some weather apps). In the UK that's usually between April and September.
• For black and brown skin, the BAD recommends sun protection from a UV index of 11 or more. It says the UK maximum is around 7, "so routine sun protection is usually unnecessary for people with these skin tones." But it names important exceptions: skin conditions that make someone more vulnerable to sun damage, a high risk of skin cancer, and hyperpigmentation. Sun can make dark patches more noticeable, so if that's a concern, protect the affected area.

Other guidance points the other way for some people:

• Cancer Research UK says the UK sun is often strong enough to cause damage from mid-March to mid-October, even when it's cold or cloudy, and that clouds let most UV through.
• The NHS advises daily SPF 30 or higher for rosacea.
• Retinoid, acid and benzoyl peroxide guidance all say to protect skin from the sun while using them.
• DermNet advises year-round, life-long sun protection for melasma.

So frame it by situation, not as a blanket rule. Something like:

"The dermatologists' association says most people in the UK don't need sunscreen every day in winter. But if you're using retinol or acids, or you're worried about pigmentation or rosacea, daily SPF is worth it. And for white skin, from about April to September, it's worth it whenever the UV index is 3 or more."

That's accurate, it respects the customer, and it doesn't oversell.

Tanning myths

These come up, especially before holidays.

• A tan isn't protection. Cancer Research UK says a tan offers very little protection, and a base tan, from the sun or sunbeds, won't stop you burning.
• Fake tan doesn't protect against UV either, according to Cancer Research UK.
• Sunbeds are illegal for under-18s, the NHS says.

Remember this

• UVB burns, UVA goes deeper. Both age skin and are linked to skin cancer.
• SPF is UVB only. Stars, the UVA circle and PA are all UVA.
• UK minimum: SPF 30 and 4 or 5 stars.
• There's no official conversion between PA and stars.
• Most people use too little. About 6 to 8 teaspoons for the whole body.
• Reapply every 2 hours and after swimming, even if it's water resistant.
• SPF in makeup or moisturiser is an extra, not a replacement.
• Year-round SPF: not needed for everyone in UK winter, says the BAD, but yes with retinoids, acids, pigmentation or rosacea.

06Hair

Hair care is full of confident words: repair, rebuild, detox, porosity type, sulphate-free. Some of them rest on real science. Some are handy shorthand. A few are marketing that's got ahead of the evidence.

This chapter gives you enough of the science to tell which is which, so you can help a customer choose without promising something no bottle can deliver. As always, your Space NK training and the brand teams come first on specific products.

How a hair is built

You only need two parts.

• The cuticle is the outside: overlapping scales, a bit like roof tiles. It protects everything underneath.
• The cortex is the inside, the bulk of the hair. It's made of keratin, a protein.

A dermatology review from 2015 explains that damage really starts when the cuticle is lost. Once the cortex is exposed, it can be damaged further, and the hair can eventually fracture. Split ends happen the same way: the cuticle wears away and cracks run along the hair.

Two more facts from the same review explain a lot of what you'll sell:

• Alkaline products swell hair and lift the cuticle. Bleach and many dyes are alkaline. That's one reason coloured hair behaves differently.
• Disulphide bonds hold keratin in shape. They're chemical links inside the hair. Perms and relaxers work by breaking these bonds and re-forming them in a new position.

Keep "cuticle" and "disulphide bonds" in your head. Nearly every hair claim in the shop comes back to one or the other.

Hair types and the curl chart

You'll hear customers describe themselves as "a 3B" or "4C". That comes from the curl chart.

What the chart is

The chart runs from 1A (the straightest) to 4C (the curliest):

• Type 1 is straight.
• Type 2 is wavy.
• Type 3 is curly.
• Type 4 is coily, sometimes called kinky.

Each type is split into A, B and C.

Where it came from

This matters. The chart was created in the 1990s by a stylist, Andre Walker, to market his own line of hair products. It wasn't designed by scientists.

It's also been criticised for leaning towards looser curls. One criticism, reported by a design podcast that looked into the chart, is that the sites using it focus too much on 3B hair rather than 4C, and "the tighter your curl ... the less represented you are".

Its evidence status

There is a scientific alternative. A 2007 study measured the hair of 2,449 people from 22 countries and sorted it into eight curl types, without reference to ethnicity. You don't need to learn it. The point is that the popular chart isn't the scientific one.

So here's the fair way to treat it: the 1A to 4C chart is a useful shared vocabulary, not science. If a customer tells you she's a 3C, that's a quick way of describing her hair, and you should use her words. Just don't present the chart as a measurement.

Many people will tell you their head has more than one pattern. That's widely said, but I couldn't confirm it from an authoritative source, so treat it as something customers tell you rather than a fact you tell them.

Porosity

Porosity means how readily hair takes up water and products, and how quickly it loses them.

What the science supports:

• Chemical damage raises porosity. The 2015 review says bleached and chemically treated hair is more porous than untreated hair, and has a higher attraction to conditioning ingredients.
• Bleach changes hair fast. A 2008 lab study found oxidative bleach nearly tripled the hair's surface area in the first minute of bleaching, because of the increase in pores.

What the science doesn't support: you'll hear about "low", "medium" and "high" porosity hair, and a test where you drop a strand into a glass of water to see if it floats. I found no validated scientific basis for either. They're popular shorthand.

A good way to handle it on the shop floor: if a customer says she has high-porosity hair, ask what her hair actually does. Does it dry very fast? Does it drink up products? Is it bleached or coloured? Those answers help you more than the label.

Bond builders and "bond repair"

This is one of the biggest categories in hair, so it's worth getting right.

What's claimed

Some patents claim that certain ingredients re-link the broken disulphide bonds inside the hair. One ingredient named in that research is bis-aminopropyl diglycol dimaleate, which is used in some bond-building products. The idea is that the product literally rebuilds the bonds that bleach or heat broke.

What an independent study found

A 2021 independent study tested these treatments. It found:

• Surface improvements. Under a microscope, treated hair had a more regular surface and the cuticle scales sat more neatly.
• No measurable increase in disulphide bonds in the cortex (the inside of the hair). The researchers were careful to say they couldn't rule out a change in the cuticle.

What that means for you

The plain-English verdict from the research behind this guide: the independent study found bond builders can leave damaged hair with a smoother, more regular surface. Whether they literally rebuild broken bonds inside the hair isn't proven. The independent evidence is mixed and limited.

So:

• Say "the brand says it's designed to repair bonds" or "the brand says it's designed to strengthen hair that's been bleached".
• Say "the brand says it's designed to leave bleached hair feeling smoother".
• Don't say "this rebuilds your hair from the inside" as if it's proven.

That's not being negative about the product. A customer who's had her hair bleached wants it to look and feel better, and these products are designed for exactly that.

Scalp care

Scalp products are growing, and this is where you need to be most careful, because a lot of scalp questions are really medical questions.

Dandruff

The NHS says:

• Dandruff is common. It isn't harmful, and you can't catch it.
• It isn't caused by poor hygiene.

Worth knowing, because customers are sometimes embarrassed about it. You can reassure them kindly with those facts.

The NHS lists anti-dandruff shampoo ingredients to look for, from a pharmacy or supermarket: ketoconazole, coal tar and salicylic acid. It says to see a GP if symptoms are still there after using anti-dandruff shampoo for at least 4 weeks.

Hair loss

The NHS says it's normal to lose between 50 and 100 hairs a day, often without noticing. It also says to see a GP to find out what's causing hair loss "before thinking about going to a commercial hair clinic".

That's your script. If a customer is worried about thinning or shedding, be kind, and suggest a GP first.

Cosmetics can't claim to treat hair loss. Treating a condition is a medicine's job, as the claims chapter explains. Some scalp serums are marketed around fuller-looking hair, but the evidence for cosmetic growth serums wasn't assessed in the research for this guide. Stick to what the brand says the product is designed to do, and never promise regrowth.

Reactions to hair products

The NHS describes red, irritated skin, sometimes with blisters and cracking, as a possible reaction to products such as hair dye, sprays, gels or mousses. That's contact dermatitis, and it's a GP or pharmacist matter. Don't recommend a product to fix it. For swelling of the face, lips, tongue or throat, or difficulty breathing, follow the emergency advice in the shop floor chapter: that's 999, straight away.

Heat protection

The science here is from lab studies only, but it's useful.

• Heat protectant sprays helped. A 2011 lab study found that both water-based ("wet") and alcohol-based ("dry") heat protection sprays reduced one marker of heat damage with repeated use.
• Water-based sprays caused more structural damage than alcohol-based ones in that study.
• Flat-ironing wet hair is worse. The same study found heat on wet hair caused the same chemical damage but considerably more structural damage.
• Silicones help spread heat. The 2015 dermatology review says a silicone heat protector spreads the heat along the hair's surface, which helps avoid water boiling inside the hair and forming bubbles.

A practical line: "Let your hair dry before you straighten it, and use a heat protector every time."

You'll hear rules like "never go above a certain temperature". I found no specific safe-temperature figure in authoritative sources, so don't quote one. If a tool's instructions give a setting, that's the brand's guidance, and you can say so.

Sulphates: facts and myths

What they are

Sulphates are the main cleansing detergents in many shampoos. Two you'll see on labels are sodium lauryl sulphate (SLS) and sodium laureth sulphate. A 2015 dermatology review describes lauryl sulphates as popular cleansers that foam well and rinse easily, and laureth sulphates as excellent detergents with good cleansing ability.

Facts

• Strong cleansing can leave hair rough. The same review says hair that's been cleaned too thoroughly can be harsh, dull, frizzy and prone to tangling. That's why conditioner exists.
• SLS can irritate skin. It's used in research specifically to irritate skin in a controlled way.
• It's considered safe as used. The US industry safety panel (the Cosmetic Ingredient Review) has assessed lauryl sulphates, and they're used in rinse-off products.

Myths and unproven claims

• "Sulphates cause cancer." No reliable evidence was found for it in the research behind this guide, and no primary source statement either way could be reached, so don't quote any organisation. Just don't repeat the claim.
• "Sulphates build up in your organs." The 2015 review repeats this, but the other sources don't support it. Don't use it.
• "Sulphate-free is better for coloured or curly hair." It's plausible, because sulphate-free shampoos usually cleanse more gently, but I found no independent study proving it. Say "gentler", not "better".

A good line: "Sulphate-free shampoos are usually gentler cleansers. If your hair feels dry or frizzy after washing, some people prefer them."

Silicones: facts and myths

What they do

Silicones coat and smooth the cuticle. They add shine, reduce static and cut friction. Dimethicone is the most widely used silicone in hair care. Others you'll see include dimethiconol, amodimethicone and cyclomethicone.

The 2015 review goes further: it says silicones are even better than natural oils at forming a film and giving shine and lustre. Useful to know when a customer assumes "natural oil" automatically means "better".

Build-up

The review says some conditioning polymers can build up on the hair with continuous use and make it look rough and dull. It doesn't say which ones, so don't blame silicones specifically. A clarifying shampoo, which uses a stronger detergent, removes them.

So if a customer says her hair feels coated or heavy, a clarifying wash now and then is a reasonable suggestion.

The myth

"Silicones suffocate your hair" or "silicones damage your hair": I found no evidence for either. Treat it as a myth. If a customer prefers silicone-free products, that's her choice and you can help her find them. Just don't tell her silicones are harmful.

Notice something: sulphates and conditioners are partly linked. The same review says the polymers that build up are removed with a strong detergent, such as a lauryl sulphate.

How to talk about hair products

A few ways to keep it accurate:

• Start with the hair, not the product. "What's your hair doing that you'd like to change?" "Is it coloured or bleached?" "How do you style it?"
• Use the customer's own words for her hair type, including curl-chart numbers if she uses them.
• For bond builders, repair masks and serums: "The brand says it's designed to..."
• For hair loss: a GP first, as the NHS says. For scalp worries or reactions: a pharmacist or GP.
• Never say a product will stop hair falling out or make it grow.

Remember this

• Cuticle outside, cortex inside. Damage starts when the cuticle goes.
• The 1A to 4C chart was made to market products. Useful vocabulary, not science.
• Porosity is real; the "low, medium, high" labels and the float test aren't proven.
• Bond builders: surface benefits shown; rebuilding bonds inside the hair isn't proven.
• Dry hair before straightening, and use a heat protector.
• Sulphate-free means gentler, not proven better. Don't repeat "sulphates cause cancer": no evidence was found for it.
• Silicones smooth and add shine; "they suffocate hair" has no evidence.
• Dandruff that won't clear after 4 weeks and reactions go to a pharmacist or GP; hair loss to a GP first.

07Fragrance

At Christmas, fragrance is where a lot of the gift shopping lands. It's also the area where customers most often say "I don't know what I'm looking for", which makes it one of the best places to be helpful.

One thing to know first. Almost all fragrance vocabulary is industry convention, not science. Families, notes and names like "eau de parfum" are ways the industry has agreed to talk about scent. They're genuinely useful, and customers expect you to know them. But where the research behind this guide found real science, I've said so, and where it's just convention, I've said that too.

The sources here are the Michael Edwards Fragrance Wheel (the industry's own classification), The Perfume Society (a UK consumer fragrance organisation) and a handful of peer-reviewed studies.

Fragrance families and the wheel

What the wheel is

The Fragrance Wheel, created by Michael Edwards, groups fragrances into families and arranges them in a circle by how they relate to each other. Its own description says it "explains the relationship between innate fragrance preferences and the fragrance families".

The 14 families

On the current wheel there are 14 families:

• Soft Amber
• Amber
• Woody Amber
• Woods
• Mossy Woods
• Dry Woods
• Aromatic Fougère
• Citrus
• Water
• Green
• Fruity
• Floral
• Soft Floral
• Floral Amber

Use the names exactly as the wheel does. You may hear older names for some of these families, but I couldn't confirm them, so stick to the current list.

What some of them smell like

The wheel describes a few of them like this:

• Citrus: "The clean, refreshing notes of bergamot and lemon, mandarin and lime, oranges and grapefruit."
• Aromatic Fougère: "Signature lavender and geranium blend with citrus, herbs, and woods."
• Floral Amber: "Imagine luminous flowers warmed with spices, resins, and vanilla."

You don't need to memorise all 14 on day one. Start with the family names a customer will recognise, such as Citrus, Floral, Woods and Amber. Then learn where your shop's best sellers sit.

How to use the wheel with a customer

The wheel is most useful as a map. If someone loves a fragrance, find its family, then look at neighbouring families for something related but different. If they hate a fragrance, that tells you which part of the wheel to steer away from.

Top, heart and base notes

A fragrance changes as it sits on the skin. The industry describes this in three stages.

• Top notes (sometimes called head notes) are the first impression. The Perfume Society says they last around 5 to 15 minutes before they disappear.
• Heart notes (also called middle notes) are the main body. The Perfume Society says they last from two to four hours and make up most of the fragrance.
• Base notes give staying power. The Perfume Society says they usually last from four to six hours. It names sandalwood, musk, vanilla, oak moss and patchouli among the relatively small range of base notes perfumers work with.

The science behind it

There's real chemistry here. A 2025 study explains that lighter molecules, with higher vapour pressure and weaker forces holding them together, evaporate more quickly. So the light, bright molecules reach your nose first and fade first. Heavier ones linger.

The caveat

Those timings are rules of thumb from a consumer organisation, not measured standards. Every fragrance behaves differently. So say "top notes usually fade within minutes", not "this top note lasts exactly ten minutes".

Why it matters in the shop

The Perfume Society makes the key point: "it is really the heart notes and the lingering base notes which you will live with". The top notes sell a fragrance on a blotter. The heart and base are what the customer actually wears all day. That's why rushing is a mistake.

Concentrations: parfum, EDP, EDT, EDC

The names on the bottle describe how much perfume oil is dissolved in the alcohol base. The Perfume Society gives an average guide:

• Extract: 20 to 30 per cent
• Perfume or parfum: 15 to 25 per cent
• Eau de parfum (EDP): 8 to 15 per cent
• Eau de toilette (EDT): 4 to 8 per cent
• Cologne (EDC, eau de cologne): 2 to 4 per cent

Three things to understand about that list:

1. It's an average, not a rule. The Perfume Society says concentrations "can vary from fragrance to fragrance". Other published ranges differ from these.
2. These names don't appear to be legally defined. I found no UK legal definition of EDP or EDT, so treat them as convention.
3. Different concentrations can be different formulas. The Perfume Society warns that different concentrations "may also have different notes in them, and not simply be weaker or stronger."

That third point is the one customers rarely know. If someone loves the eau de toilette and wants the eau de parfum "because it's stronger", let them smell both first. It may not be the same scent.

How to test fragrance

Blotters first, skin second

The Perfume Society's approach:

1. Start on blotters (the paper strips). They're, in its words, "a useful way of eliminating no-hopers and lining up possibilities".
2. Wait a few minutes. Let the alcohol and top notes settle before you smell the blotter.
3. Move the shortlist to skin. Blotters are "not really enough to base a perfume purchase on".

On skin, the fragrance mixes with the person (more on that below), so skin is where the decision gets made.

Don't try too many at once

A common shop-floor approach, rather than something from a study, is to keep the number down. Help them narrow down on blotters, and put only a couple on skin.

A practical tip: write the name on each blotter. It's easy to lose track.

The coffee bean myth

Many shops have coffee beans out to "reset your nose". A 2011 study found coffee beans were no better than lemon slices or plain air. The Perfume Society suggests something simpler: smell your own wool jumper or an unscented patch of your own skin.

If your store has coffee beans out, don't make a fuss about it. Just don't tell a customer they're proven to work.

Rubbing wrists

You'll hear "never rub your wrists together, it crushes the fragrance". The Perfume Society repeats it as an insider habit, but I found no scientific evidence either way. If a customer asks, you can say "a lot of perfume people avoid it", which is true, without claiming it damages anything.

Take it away

The best test is time. If they're unsure, offer a sample or suggest they wear it on skin and come back later. That's the educate, never sell approach, and it's exactly what the heart and base notes need.

Why scent differs on different skin

Customers often say "it smells amazing on my friend but not on me". There's real science behind that.

• Perfume mixes with your own body odour. A 2012 study found fragrances interact with body odour, "creating an individually-specific odor mixture". It also found people tend to choose perfumes that go well with their own odour. (Perfume makers donated materials for that study, which is worth knowing.)
• Skin changes how fast molecules evaporate, but it's complicated. The 2025 study found evaporation varied by molecule and skin type, but "no single criterion (age, gender, skin phototype) clearly explains these differences".
• Dry skin may lose fragrance faster. The Perfume Society says perfumes fade much faster on dry skin or in dry air. That's plausible, but not directly proven.

So the fair answer is: "Fragrance mixes with your own skin, so it genuinely can smell different on you. That's why it's worth trying it on."

Two things not to say:

• Don't link fragrance to hair colour ("this suits brunettes"). Some fragrance writers do. There's no evidence, and it can sound stereotyped.
• Don't say skin pH changes a scent in a predictable way. That claim only appears on brand blogs.

Niche and designer

You'll hear both words constantly.

• Niche is an informal term, not a regulated category. The Perfume Society describes niche perfumes as "often interesting, unusual, special, difficult to find ... and sometimes pricey, too." It also says they all work with the same palette of ingredients, but niche perfumers often try daring combinations.
• Designer is loose industry language for fragrances from fashion houses, usually made under licence by large fragrance companies. I couldn't confirm that from an authoritative source, so use it loosely.

So niche isn't automatically better, and designer isn't automatically ordinary. They're different approaches. The right fragrance is the one the person loves wearing.

Fragrance allergy

This matters for safety.

• DermNet, a dermatology information source, says fragrance allergy is second only to nickel as a cause of allergic contact dermatitis.
• Certain fragrance allergens have to be named on labels. That helps, but chapter 9 explains why no label, including "fragrance free", guarantees a product contains no fragrance. I couldn't confirm whether the list of named allergens has changed recently, so don't quote a number.
• The Perfume Society suggests that people who react to perfume on skin might spray the inside hem of their clothing, the underside of a lapel, or a cotton wool pad tucked in a pocket. That's a consumer tip, not medical advice, and fragrance can mark some fabrics.

If a customer says fragrance gives them a rash, the medical side goes to a pharmacist or GP, and swelling of the face or throat, or trouble breathing, is 999 straight away. The clothing tip is for people who find perfume irritating, not a workaround for a diagnosed allergy, and never tell someone a fragrance is "safe" for their allergy.

How to talk about a scent

Fragrance is hard to describe, and customers often feel they don't have the words. Your job is to give them some.

A few approaches that help:

• Use the family. "This one's in the Woods family", "this sits in the Citrus part of the wheel."
• Name a few notes they'll recognise. Bergamot, lemon, lavender, vanilla, sandalwood. Pick two or three, not the whole list on the box.
• Describe the journey. "It opens bright and citrusy, then settles into something warmer."
• Use everyday comparisons. Clean laundry, a walk in a forest, a warm jumper. People understand feelings better than ingredient lists.
• Ask them to describe it back. "What does that remind you of?" Their words are better than yours.
• Keep your own taste out of it. "I love this one" is fine once. "You have to get this" isn't.

And avoid overclaiming. "Long-lasting" is the brand's description, not a promise, because it'll behave differently on each person.

A fragrance gift consultation

This is the Christmas classic: someone buying for a partner, a mum, a friend, often with no idea where to start. Here's a practical approach, built on the consultation questions in the shop floor chapter.

1. Find out about the person

• "Who's it for?"
• "Do they already wear a fragrance? Do you know which one?"
• "Is there anything they've worn for years, or anything you know they don't like?"

A current favourite is the best clue you'll get. Find its family on the wheel and work from there.

2. If they don't know the current fragrance

Ask about the person instead:

• "Do they like fresh, clean things, or warmer, cosier things?"
• "What kind of candles or soaps do they buy?"
• "Do they wear a lot of scent, or just a little?"

These give you a direction on the wheel: Citrus, Floral, Woods or Amber.

3. Ask about budget kindly

"Do you have a price in mind?" It's polite and it saves everyone time. It also helps you choose between a full bottle, a smaller size, or a gift set.

4. Shortlist on blotters

Pick two or three that fit, spray them on labelled blotters, and let the top notes settle before they smell. Don't put ten in front of them.

5. Be clear about the risk

Fragrance is personal, and it smells different on different people. Say so kindly. If they're unsure between a known favourite and something new, the known favourite is the safer gift, and you can say that. It might cost you a more exciting sale. It earns you a customer.

6. Make it easy to change

Mention any samples or smaller sizes the store offers so the recipient can try something first. Whether your shop offers gift receipts, and how wrapping works, is something to check in training.

Remember this

• Families, notes and concentrations are industry convention. Useful, but not science.
• Top notes fade in minutes. Heart and base notes are what you live with.
• EDP, EDT and the rest are averages, not rules, and can be different formulas.
• Blotters to shortlist, skin to decide, and not too many at once.
• Coffee beans did no better than plain air in a study. Try smelling your own jumper instead.
• Perfume mixes with body odour, so it really can smell different on someone else.
• Niche means unusual, not better. The right one is the one they love wearing.
• For gifts: ask about the person, find the family, and shortlist two or three.

08Makeup Basics

Here's something that surprised me while researching this chapter. Almost none of makeup's everyday vocabulary has been studied scientifically. Searches of the medical research database for undertones and foundation shade matching turned up nothing relevant.

So nearly everything in this chapter is industry convention: the way makeup artists and brands have agreed to talk and work. That doesn't make it wrong. It's how the whole industry works, and customers expect you to know it. But it means you should present it as "this is how we do it", not "science says". Where there's a real source, I've named it.

Your Space NK training, and the brand teams, will teach you the specifics of each range. This chapter gives you the shared language underneath.

Skin tone and undertone

Two different things, and mixing them up is the most common shade-matching mistake.

• Skin tone (sometimes called depth) is how light or deep someone's skin is.
• Undertone is the colour underneath: the cast that shows through.

A medically reviewed consumer health article makes the key point: your undertone "isn't the same thing as your natural tone". And any depth can have any undertone. In its words: "Even the fairest skin can have warm undertones, and darker skin can have cool ones."

The four undertones

• Cool: pink and bluish hues.
• Warm: a yellow cast. (The same article talks about "a warm (yellow) foundation".)
• Neutral: the undertone is roughly the same colour as the skin tone itself, so neither pink nor yellow dominates.
• Olive: a mix of neutral and warm with a green cast, which the article describes as unique to olive skin. It adds that a warm, yellow foundation is usually a mistake on olive skin.

The home tests

You'll hear two quick tests:

• Veins: greenish veins on the wrist suggest warm undertones.
• Jewellery: if yellow gold suits someone, they're more likely warm or olive.

These are folk methods. No validation was found for either. They can start a conversation, but the reliable way is to swatch real shades on the skin and look.

Undertone isn't "skin type"

You may hear "Fitzpatrick skin type". That's a dermatology scale of how skin responds to the sun (how easily it burns and tans), used medically. It isn't the same as undertone, and it's not a shade-matching tool.

Shade matching

This is industry practice, widely taught by makeup artists, rather than tested science. Here's how it's usually done:

1. Pick two or three shades that look close.
2. Swatch them on the jawline or lower cheek.
3. Blend them in. A stripe that sits on top of the skin doesn't tell you much.
4. Check in daylight if you can, or near a window.
5. Wait a few minutes. Some foundations oxidise, meaning they darken slightly as they set.

The shade that disappears into the skin is the right one.

A few practical tips:

• Use a clean applicator for every customer (the shop floor chapter covers hygiene).
• If they're unsure, a sample to wear for a day tells them more than any shop mirror.

Finishes

Finish describes how a product looks on the skin once it's on. These are brand descriptors: no authoritative source defines them, and one brand's "satin" can look like another's "natural".

The usual meanings:

• Matte: no shine. Often suits oilier skin.
• Dewy or radiant: a light-reflecting glow. Often suits drier skin.
• Satin or natural: somewhere in between.

The "often suits" parts are convention, not rules. Plenty of people with oily skin love a dewy finish. Ask what they like: "Do you like a bit of glow, or do you prefer no shine at all?"

Primers

Primers go on after skincare and before foundation, and they're marketed to help makeup go on smoothly and last longer.

What the research found:

• No independent evidence that primers extend makeup wear. The claims come from brands.
• Many primers are silicone-based (dimethicone, for example). Silicones form a smooth film, which is consistent with how they behave on hair. But that's an inference, not a tested finding for primers.

So say "the brand says it's designed to help foundation last" or "a lot of people like how it smooths the skin before foundation". Don't say "this will make your makeup last all day" as if it's proven.

Foundation, skin tint and tinted moisturiser

Customers often ask what the difference is. The accurate answer is that it's mainly about coverage and texture.

According to makeup artists quoted by a US news site:

• Skin tints and tinted moisturisers are both lighter and sheerer than foundation.
• Skin tints are described as "essentially serums with a hint of color", for a barely-there look. They tend to be more watery and serum-like.
• Tinted moisturisers have a slightly thicker texture.
• Foundation gives more coverage.

These are marketing categories. One brand's skin tint may cover more than another's tinted moisturiser. So check the specific product rather than going by the name.

A simple way to help someone choose: "How much coverage do you want: just evening things out, or covering more?"

SPF in makeup

Many of these products carry an SPF. Here's what the sources say:

• The British Association of Dermatologists says a moisturiser with SPF 15 should in theory give SPF 15 protection, but "in reality, the protection you receive is much lower", and many moisturisers don't protect against UVA. It says an SPF moisturiser helps with small amounts of sun, like walking to the car, but sunscreen is better for longer, deliberate time outdoors.
• Cancer Research UK says you'd need to apply several times the normal amount of foundation to get close to the SPF on the label.

So SPF in makeup is a bonus, not a replacement for sunscreen. A useful line: "It's nice to have, but if you're going to be outside for a while, wear a sunscreen underneath."

K-beauty and J-beauty

You'll see a lot of Korean and Japanese brands and ideas. It helps to know what the words mean, and where the science stops.

First, the evidence note: K-beauty and J-beauty are market and cultural categories, not scientific ones. Nothing in the sources shows that a Korean or Japanese product works better because of where it's from.

Why it's everywhere

Scale. South Korea's government reported record cosmetics exports of 11.4 billion US dollars in 2025, up 12.3 per cent on 2024. Skincare led, at 8.54 billion US dollars, and the number of countries it exported to rose from 172 in 2024 to 202 in 2025.

The "10-step routine"

You'll hear about the famous 10-step Korean routine. BBC Science Focus reported in June 2026 that it's "likely more apocryphal than a genuinely widespread daily routine in Korea". It cited a 2021 Kantar survey of 1,500 Korean women that found most used an average of just three products each morning, not counting cleanser.

So don't tell a customer she needs ten steps. Most Korean women in that survey didn't use anywhere near that many.

The same article describes the K-beauty philosophy as focused on hydration and prevention, with active ingredients such as acids often at lower strengths than Western equivalents. It also quotes a dermatologist's caution about layering lots of products: "your face is basically a mixing bowl."

Signature K-beauty ingredients it names include fermented rice, green tea, ginseng root, mugwort, bee venom and snail mucin.

Essences and ampoules

These words have no legal or scientific definition. They're marketing categories, and the definitions come only from brands and retailers:

• Essence: usually a watery, hydrating layer used after cleansing.
• Ampoule: usually a more concentrated serum.

So when a customer asks "do I need an essence and a serum and an ampoule?", the fair answer is that they're names for textures and strengths, not essential steps. Look at what's in each one and what the brand says it's designed to do.

One thing to avoid: you'll hear that an essence "opens the pores" to let other products in. That claim wasn't supported by any source checked. Don't repeat it.

Cushion compacts

A cushion compact is a sponge soaked in liquid foundation or SPF, inside a compact, that you press a puff into. Korean press reports that Amorepacific launched the first one, the IOPE Air Cushion, in 2008. That "world's first" claim comes from the company itself.

If a cushion carries an SPF, the same caution applies as for any makeup SPF. Whether it gives the labelled protection at the amount people usually apply hasn't been confirmed. Treat it as a bonus.

Glass skin

"Glass skin" describes a look: dewy and so smooth that the skin appears to have no marks and even no visible pores. It's a finish and an aesthetic, not a skin condition. Makeup and skincare can help create the look, but no product can promise it.

J-beauty

J-beauty is usually described as a more minimalist, texture-led and ritual-led Japanese approach, for example patting hydrating "lotions" into the skin. The sources here are trade press only, so describe it loosely.

One genuinely technical J-beauty contribution is the PA rating on sunscreens. It's a Japanese grading of UVA protection from PA+ to PA++++, based on a measured UVA protection factor, and it must always appear alongside an SPF. The UK uses a star rating for UVA instead. They measure UVA differently, and there's no official conversion between them, so don't tell a customer that a certain number of plus signs equals a certain number of stars.

Claims to avoid

• "Korean or Japanese products are better." No evidence.
• "You need ten steps." Most Korean women in a 2021 survey didn't.
• "Asian sunscreens are more advanced." This is often said, but I couldn't confirm it. Leave it out.
• "An essence opens your pores." Not supported.

Remember this

• Nearly all makeup vocabulary is industry convention. Say "this is how we do it", not "science says".
• Tone is how light or deep; undertone is the cast underneath. Any depth can have any undertone.
• Swatch two or three shades on the jaw, blend, check in daylight, and wait a few minutes.
• Matte, dewy and satin are brand descriptors. Ask what finish they like.
• No independent evidence that primers make makeup last longer.
• Foundation, skin tint and tinted moisturiser differ mainly in coverage and texture.
• SPF in makeup is a bonus, not a sunscreen.
• K-beauty and J-beauty are cultures, not proof. Essence and ampoule are marketing names.

09What You Can and Can't Say

Beauty is full of words that sound precise but aren't. "Clean." "Natural." "Dermatologist tested." "Hypoallergenic." Some are regulated, some are certifications with rules behind them, and some mean whatever the brand wants them to mean.

This chapter sorts them out, and then gives you practical ways to describe what a product does without overclaiming. It's the chapter that protects you, the customer and Space NK all at once.

Two caveats before we start. First, most of the rules below govern advertising and labels. Whether they formally apply to a conversation on the shop floor is a legal question I couldn't confirm. But they're the safe line to follow in person too. Second, Space NK will have its own policy on claims, and your training comes first. If anything here differs from what you're taught, do it their way.

The big line: cosmetic or medicine

Everything else in this chapter hangs off this one idea.

What a cosmetic is

UK law defines a cosmetic by what it's for. In summary, a cosmetic is used on the outside of the body (skin, hair, nails, lips) or in the mouth, mainly to:

• clean it
• perfume it
• change its appearance
• protect it
• keep it in good condition
• correct body odours

Notice what isn't on the list: treating disease.

Cosmetics can't treat medical conditions

The Advertising Standards Authority (ASA) says medical claims can only be made for a licensed medicine or a properly certified medical device. A medical claim is one that a product can diagnose, treat or prevent disease, "including an injury, ailment or adverse condition, whether of body or mind".

Cosmetics are allowed some limited preventative claims, backed by evidence. They're never allowed to claim they treat a disease.

Some examples from the ASA's guidance:

• Acne. Claims to "treat" acne or spots are likely to be medicinal. But a claim that a cosmetic cleans pores and keeps skin in good condition to prevent occasional spots is likely to be acceptable.
• Eczema. Treatment claims need a licensed medicine or a registered medical device.
• Ageing. Saying a cream can "reduce the appearance of fine lines and wrinkles" is likely to be acceptable. Saying or implying it has an "anti-ageing" or "anti-wrinkle" effect isn't.

That last one surprises people, because "anti-ageing" is everywhere. The ASA's point is about what's implied: a cosmetic can change how skin looks, not reverse ageing.

What this means for you

When a customer mentions acne, eczema, rosacea, melasma, hair loss or a reaction, you're in medical territory. You can help with everyday care. Acne that isn't improving, eczema, rosacea, melasma, hair loss and reactions go to a pharmacist, GP or dermatologist.

For a question about a condition (not a reaction), a variation on the shop floor chapter's script works: "I'm not medically trained, so I can't tell you what that is. A pharmacist or your GP can help with that. For everyday care, I can show you something gentle." If it's a reaction to a product, use the full script in the shop floor chapter, including when it's a 999 call.

The rules every claim has to follow

In Great Britain, cosmetic claims have to meet a set of "common criteria". They cover legal compliance, truthfulness, evidential support, fairness, informed decision-making, and a sixth on not overstating what the evidence shows.

Some of the detail is especially useful:

• Claims need evidence. Claims must be "supported by adequate and verifiable evidence". The ASA adds that beauty brands "must hold clinical evidence of any efficacy claims".
• "Contains X" means X is really there, on purpose. If a product says it contains an ingredient, it must be deliberately present.
• An ingredient's benefit isn't automatically the product's. A claim about an ingredient mustn't imply the finished product has the same property when it doesn't. So "vitamin C is an antioxidant" doesn't mean every product containing vitamin C does what the research on vitamin C found.
• You can't boast about the legal minimum. A claim can't present something as a special benefit when it's simply what the law requires of every product.
• Claims mustn't knock legal ingredients or competitors.
• Products mustn't be presented as having properties they don't have.

And one more fact: every cosmetic sold in Great Britain has to have a UK "Responsible Person" who makes sure it meets safety rules. That's a legal requirement for every product on your shelves.

Claim by claim

"Clean"

No legal definition was found in UK law or guidance. It means whatever the brand says it means.

There's also a tension. The rules say claims mustn't denigrate ingredients that are legally used. "Clean" can imply that other products, or other ingredients, are "dirty", which runs close to that line.

How to handle it: ask the customer what "clean" means to them. Fragrance free? Vegan? Fewer ingredients? Then help them find exactly that, and look at the ingredient list together.

"Natural"

No legal definition in UK cosmetics law was found. There's a voluntary international standard for calculating "natural origin" percentages, but it's optional, and I couldn't check its details at source.

Worth remembering: natural doesn't mean gentle, and it doesn't mean better. Fragrance allergy is common, and plant extracts can contain fragrance ingredients (more on that below).

"Vegan"

No UK legal definition for cosmetics was found. The main certification is The Vegan Society's Vegan Trademark, which describes itself as the leading third-party vegan certification scheme in the world, certifying products since 1990.

Vegan means no animal ingredients. That's a different thing from cruelty free, which is about animal testing. A product can be one without being the other.

Snail mucin and beeswax products aren't vegan.

Animal testing and "cruelty free"

Start with the law. Testing finished cosmetics, or their ingredients, on animals is banned in the UK for the purposes of the cosmetics rules. The same law allows brands to use historic animal testing data.

No legal definition of "cruelty free" itself was found. That's why certifications matter.

Leaping Bunny is a certification run by Cruelty Free International. To be approved, a brand must:

• follow a fixed cut-off date policy
• proactively monitor its suppliers to make sure approved products keep meeting the criteria
• have its supplier monitoring independently audited

So if a customer asks "is this cruelty free?", the most useful answer is specific: "It's Leaping Bunny certified" if the packaging or brand says so. If there's no certification, say what the brand says and suggest they check the brand's own statement.

"Dermatologically tested" or "dermatologist tested"

This one is widely misunderstood. Guidance from an EU expert group says "dermatologically tested" means the product was tested on people under a dermatologist's supervision.

It does not mean:

• approved or recommended by dermatologists
• suitable for everyone
• won't cause a reaction

The same guidance says customers' own opinions of a product aren't enough to support that kind of claim. This is EU guidance, not law, and I couldn't confirm whether UK authorities apply it. But it's the best available description of what the phrase should mean.

"Non-comedogenic"

"Comedogenic" means likely to clog pores. No UK legal definition or standard test was found, and the evidence behind the label is weak.

It still matters to customers with spot-prone skin. The NICE acne guideline advises people with acne to avoid oil-based and comedogenic products.

Safe line: "It's formulated not to clog pores." Never: "It won't give you breakouts."

"Hypoallergenic"

The EU expert guidance says "hypoallergenic" should only be used when a product has been designed to minimise its allergy potential, and that it "does not guarantee a complete absence of risk". The American Academy of Dermatology puts it plainly: "Even hypoallergenic products can cause a skin reaction."

Safe line: "It's designed to reduce the chance of a reaction, but no product can guarantee that. If you're worried, try it on a small patch first."

"Fragrance free" and "unscented"

This is one of the most useful sections in the chapter, because the labels promise less than they seem to.

The two big sources don't treat the labels the same way:

• The American Academy of Dermatology advises choosing products labelled "fragrance free", and staying cautious with products labelled "unscented" or with plant-based botanical ingredients, because these "may still have fragrance-related ingredients."
• DermNet, a dermatology information source, treats "fragrance-free" and "unscented" as the same label, and warns that products labelled fragrance-free "could still include masking fragrances". It adds that products listing "botanical", "herbal" or "natural" ingredients may contain an unidentified fragrance.

So the safe reading is: neither label guarantees there's no fragrance in the product. "Fragrance free" is the better starting point, but it isn't a promise.

The EU expert guidance adds that "free from perfume" shouldn't be used if any ingredient performs a perfuming function, whatever else it does. Essential oils can scent a product, so check the ingredient list.

Why it matters: fragrance allergy is second only to nickel as a cause of allergic contact dermatitis. So for a customer who reacts to fragrance:

• Read the full ingredient list together, rather than relying on the front of the pack.
• Remember that neither label guarantees there's no fragrance.
• Allergy UK says a reaction "may not appear until several hours or even days after using the product", so trying a little in the shop proves nothing.
• Send the allergy itself to a pharmacist, who can advise whether it's worth trying.
• Never tell them a product is safe for their allergy, whatever the label says.

"Free from" claims generally

EU expert guidance says "free from parabens" shouldn't be used, because all cosmetics must be safe and the claim denigrates a whole group of legal ingredients. I couldn't confirm how UK authorities apply that guidance, but it's consistent with the UK rule against knocking legal ingredients.

So be careful with "free from" as a selling point. "This doesn't contain fragrance" is useful information for someone with an allergy. "This is free from nasties" isn't a fact.

"B Corp"

B Corp is a certification of the company, not the product. B Lab UK describes certified B Corporations as companies verified to meet high standards of social and environmental performance, transparency and accountability.

It says nothing about whether a product's ingredients are gentler or whether it works better.

The exact criteria were changing: B Lab UK's page still described a points threshold, while trade reports said new standards replaced it from April 2025, and I couldn't confirm the current rules. So describe it in general terms, as it stood in September 2026: "B Corp certified means the company as a whole has been independently assessed on social and environmental standards."

Green and eco claims

The UK competition regulator's Green Claims Code says environmental claims "must be truthful and accurate". It also says claims mustn't present a standard feature as if it were a special environmental benefit.

If a customer asks about packaging or sustainability, tell them what the brand states, and don't add to it.

SPF

An EU recommendation says a sunscreen shouldn't claim to give total protection. So never say "you won't burn in this" or "this blocks everything".

Phrases to avoid, and what to say instead

This comparison is the heart of the chapter. It's adapted from the research behind this guide, which built it from the rules above.

A few more, following the same rules:

• Not "this won't break you out". Instead "it's formulated not to clog pores".
• Not "this won't irritate your skin". Instead "it's designed for sensitive skin, but it's worth trying a small patch first".
• Not "this is natural so it's gentler". Instead "here's what's in it".
• Not "dermatologists recommend this". Instead "it's been dermatologically tested, which means it was tested on people under a dermatologist's supervision", and only if the pack says so.
• Not "you'll see results in two weeks". Instead "most products need a few weeks of regular use before you can judge them". (The American Academy of Dermatology says most take at least six weeks, and sometimes up to three months.)

On "chemical free": everything in a jar is made of chemicals. The British Association of Dermatologists even calls the mineral filters in sunscreen "inorganic chemicals". So "chemical free" is never true.

"The brand says": how to talk about claims

This is the single most useful habit you can build.

What a product does is the brand's claim, not a promise. You haven't tested it, and neither has the customer. So attribute it:

• "The brand says it's designed to..."
• "It's formulated to..."
• "It's designed for skin that..."
• "In the brand's own testing, they found..." (only if the brand has told you, and give it exactly as they gave it)
• "Customers with similar skin often like it because..." (only if you've actually heard that from customers)

This isn't hedging. It's accurate, and experienced customers notice. Someone who's been oversold before will trust you more when you're careful.

When the evidence is thin, you can say so kindly. "It's a newer ingredient, and the research is still early. The brand says it's designed to..." Customers respect that.

Safe ways to describe what a product does

Here's a practical list to keep in your head. Each one describes what a product does without promising a result or straying into medicine.

What it's for:

• "It's designed to hydrate."
• "It's designed to cleanse without stripping the skin."
• "It's designed to smooth and add shine to hair."
• "It's designed to help protect skin from the sun" (for a sunscreen with its SPF and UVA rating on the pack).

How it looks and feels:

• "It can help reduce the appearance of fine lines."
• "It's designed to even out the look of skin tone."
• "It gives a matte finish" or "a dewy finish."
• "It's a light, gel texture" or "it's rich and creamy."

Who it suits:

• "It's designed for dry skin" (or oily, combination, sensitive).
• "It's labelled fragrance free, which some people with sensitive skin prefer." (A preference, never reassurance for an allergy.)
• "It's formulated not to clog pores."

Keeping skin in good condition:

• "It helps keep pores clear."
• "It supports the skin's barrier."
• "It helps keep skin feeling comfortable."

What you can say about certifications, when the pack says so:

• "It's Leaping Bunny certified."
• "It carries The Vegan Society's Vegan Trademark."
• "The company is a certified B Corp."

And when you don't know:

• "I'm not sure. Let me find out for you."
• "That's a question for a pharmacist."

Nut allergies

Lots of skincare, body and hair products contain oils and butters from nuts: almond, argan, macadamia and shea turn up often. The brand pages in the A to Z point some of them out, but those notes are examples, not a complete list. The ingredient details they were written from were shortened, so a card that mentions no nuts doesn't mean the product has none.

So for any customer who mentions a nut allergy, the approach never changes:

• Find the full ingredient list on the box or the product page, and read it with them.
• Don't tell them a product is safe for their allergy, even if you can't see a nut on the list.
• Send the allergy question itself to a pharmacist or GP.
• And if anyone has swelling of the face, lips, tongue or throat, or trouble breathing, that's 999, straight away.

Remember this

• Cosmetics clean, perfume, change appearance, protect and keep things in good condition. They don't treat disease.
• Acne that isn't improving, eczema, rosacea and reactions go to a pharmacist, GP or dermatologist; hair loss to a GP first; pregnancy to a midwife, GP or pharmacist; swelling or breathing trouble is 999.
• "Reduces the appearance of fine lines" is fine. "Anti-ageing" as a promise isn't.
• No legal definition of "clean" or "natural" was found. Ask what the customer means.
• Vegan is about ingredients; cruelty free is about testing. Leaping Bunny is a certification.
• "Dermatologically tested" means tested under a dermatologist's supervision, not recommended by one.
• Neither "fragrance free" nor "unscented" guarantees no fragrance. Read the ingredients, and never call a product safe for an allergy.
• Always attribute: "the brand says it's designed to".
• Nut allergy: read the full ingredient list with them, never call anything safe, and send the question to a pharmacist or GP. The A to Z's nut notes are examples, not a complete list.

10On the Shop Floor

This is the chapter I care most about, because it's the one that'll make the difference in your first week.

Most of it is advice rather than fact, and it reads that way. Where something comes from a source, I've said so. And, as always, your Space NK training and your manager come first. If anything here disagrees with what they tell you, do it their way.

The two things that are both true

Our family rule in the shutter business is we educate, we never sell. No pushy closes, no false urgency, no talking someone into something they don't need. Help them choose well, and they come back.

Space NK's own advert for your job fits that. It asks you to deliver "unbiased customer advice through exceptional product knowledge".

The same advert also says, plainly: "The Beauty Advisor's main responsibility is to achieve sales and KPI's target through a customer first approach." And it lists "Exceeding sales targets and the company acquisition target for N.dulge". KPIs are key performance indicators: the numbers your store is measured on.

So you'll have targets. I'm not going to pretend otherwise, and neither should you.

Here's how the two fit together. The most reliable way to hit a sales target in a shop like this is to be the person people trust. That's my view, not a Space NK statement, but the evidence points the same way. McKinsey's 2026 State of Beauty report says shoppers have become "more informed about products, ingredients, and efficacy claims". Mintel found in 2026 that 79 per cent of beauty and grooming users "have noticed products becoming more expensive, increasing scrutiny of claims, efficacy and value." Customers can tell when they're being sold to. They buy from the person who helped.

And the regulars matter. Mintel found that 78 per cent of UK professional treatment users "are loyal to the same beauty/grooming professionals." That figure is about treatments, not shop advisors, but the principle carries: people come back to someone they trust.

Why you, and not a website

Anything in the shop can be bought online. So why would anyone come in?

Andy Lightfoot, Space NK's chief executive in 2022, answered that in an interview. Customers "go to our stores to have a personal interaction with a beauty advisor", and "what they don't want is the BA reading off an iPad about the last three samples they received."

You're the reason the shop exists. Use a screen when it helps, but don't hide behind it. Look at the person.

A hospitality school article from 2023 put it well: "Your staff are the most direct expression of your brand, and in luxury, every interaction carries weight."

Opening a conversation

The hardest moment is the first one. Someone walks in. What do you say?

Don't open with a product. Open with a question about them. A few that work:

• "What are you shopping for today?"
• "What's your skin doing at the moment?"
• "Is this for you, or are you looking for a gift?"

Then the most important part: stop and listen to the answer before you pick anything up.

If they say "just looking", that's fine. "Lovely, I'm here if you want anything. Have a look around." Then give them space. Stay nearby, stay available, don't hover. Some people want to browse, and a luxury shop should feel like somewhere you're allowed to browse.

Questions that find out what someone needs

There are two kinds of question. The Skills You Need website explains them simply: closed questions "invite a short focused answer" (think yes or no), while open questions "allow for much longer responses and therefore potentially more creativity and information."

Start open, then narrow down. That's called funnelling. It goes wide first ("tell me about your routine"), then focuses ("what do you use to cleanse?", "how does your skin feel by the afternoon?").

The four things you're trying to find out:

1. Their skin, hair or need. What's bothering them, and what they'd like to change.
2. Their routine. What they already use and like, and what they gave up on.
3. Their budget. Ask kindly and directly. "Do you have a price in mind?" is perfectly polite, and it saves everyone embarrassment.
4. Who it's for. Them, or someone else. It changes every other question.

Your consultation questions

Learn these. You won't use all of them on everyone, but having them ready means you'll never freeze.

Opening:

• What brings you in today?
• Is it for you, or for someone else?

Skin:

• How would you describe your skin: dry, oily, a bit of both, or it changes?
• What's it doing at the moment that you'd like to change?
• How does it feel by the end of the day?
• Is it ever sensitive, or does it react to things?

Routine:

• What are you using at the moment?
• What do you love in your routine and wouldn't change?
• Is there anything you've tried and didn't get on with? What didn't you like about it?
• How much time do you like to spend on it, morning and night?

Preferences:

• Do you like a scent in your products, or would you rather not?
• What kind of texture do you like: light, rich, gel?
• For makeup, what finish do you like: natural, dewy, matte?

Budget and decision:

• Do you have a budget in mind?
• Would you like some time to think about it and come back?

Before they go:

• Do you shop with us often? (If yes, that's your natural moment to mention NDULGE.)

Recommend a routine, not a pile of products

When you've listened, the temptation is to recommend five things. Resist it.

Ask what they already use, then find one thing that fits into it and does the job they asked about. A customer who goes home with one product that works will trust you with the next one. A customer who goes home with five and a confused routine won't.

That fits the market too. McKinsey's 2026 report says shoppers have become "more willing to mix prestige and mass purchases into their beauty routines." So don't assume everything in their bathroom has to come from Space NK. Fit in.

What a product does is the brand's claim, not a promise. Say "it's designed to", "the brand says". Never "this will get rid of your lines". You'll sound more knowledgeable, not less, because experienced customers notice the difference.

Remembering people

Luxury shops talk about clienteling: remembering a customer's preferences and history so you act as an advisor, not a vendor. There's software for it, but at its simplest it's this:

• Remember their name if they tell you.
• Remember what they bought and what it was for.
• Next time: "How did you get on with that serum?"

That one sentence turns a customer into a regular.

Testers and hygiene

This matters for your customers' skin and for the shop's reputation. Here's sensible practice. Check it against Space NK's own hygiene standard in training.

• Never apply straight from a shared tester to someone's face. Use a fresh disposable applicator, spatula or cotton pad each time.
• Sanitise your hands before touching anyone's skin.
• Use a spatula for creams rather than dipping fingers into the pot.
• Lip and eye products: test on the back of the hand unless there's a single-use method.
• Keep testers tidy and clean. A messy tester unit says a lot about a shop.

The UK cosmetics trade body, the CTPA, published tester guidance during the pandemic, and researchers have looked at contamination in shared testers. I couldn't read either in full, so there are no figures here. My advice is single-use applicators every time, but Space NK's own hygiene standard is the one to follow.

Sampling

A sample lets the product make its own case. If someone's unsure, and your store offers samples, a sample to take home is better than pushing the full size. Samples are stock, so only give them the way your store's policy allows. Find out in training how sampling works in your shop.

It's the educate, never sell approach in its simplest form. It also brings people back, and the second visit is where you build a regular.

Listening

Harvard Business Review opened an article on listening with this line: "People's appraisal of their listening ability is much like their assessment of their driving skills, in that the great bulk of adults think they're above average."

Which means most of us aren't as good at it as we think. A few habits help:

• Let them finish. Don't jump in with a product halfway through a sentence.
• Say back what you heard. "So your skin's fine in the morning but tight by the afternoon?"
• Notice what they avoid. If they skip past price, they might be worried about it.
• Watch their face when you mention a product. It'll tell you more than their words.

"I'm new, let me find out"

You'll be asked things you don't know, from your first hour. That's fine.

"I'm new, let me find out for you" is a strength, not a weakness. Say it, then actually find out: ask a colleague, check the product card, or ask a brand rep if one's in. Then go back to the customer with the answer.

What you must never do is bluff. Customers are scrutinising claims, as the Mintel figure above shows. One confident wrong answer about an ingredient undoes ten good ones.

Tricky moments

A reaction or a medical question

This is the most important one to get right. Cosmetics can't treat medical conditions, and you're not medically trained. Never diagnose.

Some facts from the NHS and Allergy UK:

• Allergy UK says a skin allergy to cosmetics "often appears as itchy, sore, red, bumpy skin, which becomes flaky and dry", and "the reaction may not appear until several hours or even days after using the product."
• Allergy UK also says: "If a severe reaction occurs or the symptoms don't settle after a few days you should seek medical attention and advice."
• NHS inform lists "swelling of the mouth, throat or tongue, which can cause breathing and swallowing difficulties" as a sign of anaphylaxis, a severe allergic reaction, and says "You should call 999 for an ambulance".

If it's happening in front of you, in the shop: swelling of the face, lips, mouth, tongue or throat, or difficulty breathing or swallowing. (That list goes a little wider than the NHS wording above, on purpose.) Call 999 yourself, straight away, and tell your manager. Ask a colleague to fetch your manager and the first aider while you're on the phone. Don't wait, and encourage the customer to stay while you call rather than go and sort it out later. NHS inform says to call 999 "whether adrenaline has been given or not."

For someone describing a reaction that happened at home, here's a script you can use:

"I'm not medically trained, so I can't tell you what that is. Please stop using it and speak to a pharmacist or your GP. If your lips, tongue or throat start swelling, or you're struggling to breathe, that's a 999 call."

Then tell your manager, and follow the store's process. Never recommend a product to "fix" an active reaction.

The same goes for questions about pregnancy, medication or skin conditions. "Can I use retinol while I'm pregnant?" "Is this OK with my eczema?" The answer is: check the product's label, and ask a midwife, GP or pharmacist. Don't guess. In Scotland, pharmacies can help with minor conditions through NHS Pharmacy First. NHS inform says "You do not usually need an appointment and you can go to any pharmacy."

Young teenagers asking for strong actives

You may get a 12-year-old asking for retinol or acids. A Pai Skincare survey (a brand-commissioned one) reported in February 2026 found that "more than one in four UK tweens (aged 9-12) are using products containing potent actives such as retinol and AHAs." A GP with a special interest in dermatology, quoted in the same article, said "they can really do damage to the skin barrier when used by tweens."

A kind way through: say those products are made for adult skin, suggest a gentle cleanser and moisturiser instead, and involve the parent. Check Space NK's own policy in training.

A return

Space NK's policy is covered in the chapter on how Space NK works, and your training covers the till. The attitude is the part you control. Be gracious. Someone returning something is often a bit embarrassed or a bit annoyed. A smooth, friendly return brings them back. A grudging one loses them.

If a customer's unhappy with the policy, don't argue it yourself. Get a supervisor.

Someone who wants a cheaper dupe

A "dupe" is a cheaper product sold as a copy of an expensive one. Mintel found in 2024 that 42 per cent of prestige BPC (beauty and personal care) buyers "have purchased a 'dupe' version of their favourite product." So it's normal, and nothing to sneer at.

How to handle it:

• Don't be sniffy, and don't oversell.
• Ask what they love about the original: the scent, the texture, the finish.
• Explain what the prestige product does differently, as the brand describes it.
• Offer a lower-cost way in: a smaller size, a mini, or a gift set.
• If a cheaper product in the shop, or a mini, really does suit them better, say so. It costs you a bigger sale and earns you a customer who believes you.
• Don't send people to another retailer's dupe. Help them find the right thing here, or let them go away and think.

Someone who knows more than you

They will exist, and they'll know more than you about a product they've used for years. Good. Ask them about it. "What do you love about it?" People enjoy being the expert. Then help with what they came for, and use "let me find out" for anything you're unsure of.

Buying a gift for someone else

This is the big one at Christmas, so it has its own section in the Christmas chapter. The short version: ask who it's for, what they already use or wear, whether they like scent, and what the budget is. Offer the free gift wrapping, and find out in training how gift receipts work in your store.

A queue and a stressed customer

Usdaw, the shopworkers' union, said in December 2023 that "incidents of verbal abuse are much worse in the run up to Christmas, when shops are busy, customers are stressed and things can boil over." Its members mostly work in grocery and general retail, not luxury beauty, so don't expect the same. But it helps to be ready.

• Acknowledge the wait first. "Thanks for waiting, I'll be with you in a moment."
• Keep your voice low and calm.
• Don't argue policy on your own. Call a supervisor early rather than late.
• Your safety comes first, always.

Remember this

• Educate, never sell. The trusted advisor is the one who hits the target.
• Open with a question about them, then listen: skin, routine, budget, who it's for.
• Recommend one thing that fits their routine, not five.
• A product's effect is the brand's claim: "designed to", "the brand says".
• Fresh applicator every time. Never straight from tester to face.
• "I'm new, let me find out" is a strength. Never bluff.
• A reaction or medical question goes to a pharmacist or GP.
• Swelling of the face, lips, tongue or throat, or trouble breathing, in the shop: call 999 yourself, straight away, and tell your manager.

11Christmas at Space NK

You've been hired for the Christmas season. Space NK's advert for seasonal beauty advisors describes the role as running from early October to early January. Your own dates are whatever your contract says.

This chapter is in two halves. First what Christmas is like in a beauty shop, with the facts. Then how to get through it well, which is mostly advice, and reads that way.

Why Christmas is so big in beauty

The numbers for beauty are striking. Circana, the market research firm that tracks UK prestige beauty sales, reported these for December 2024:

• Total beauty sales were up 18.5 per cent year on year for the month.
• In week 52, the last week of 2024, prestige beauty sales were 61 per cent higher than the same week a year before.
• Fragrance in that week was 97 per cent higher than a year before, which CEW UK, reporting Circana's figures, called "remarkable".

Those are growth figures, not a ranking of the busiest weeks. But they show late December is a big moment, especially for fragrance.

In the US (these are US figures, not UK ones), Circana says 25 per cent of prestige fragrance sales "occur in December". In December 2025 it also said gift sets were doing well across beauty, with minis a strong segment (that part is from a summary of Circana's post, not its exact words).

What happened at Space NK last Christmas

Over November and December 2025, Space NK:

• grew 26 per cent on the year before, with stores up 23 per cent and online up 30 per cent;
• had the biggest sales week in its history during Black Friday, almost 20 per cent above its previous record;
• saw Christmas gift sets deliver "the strongest gifting performance in Space NK's history", with unit sales up over 40 per cent;
• and, most useful for you: 65 per cent of gift set sales came from products priced under £30.

That last figure matters. A luxury shop at Christmas isn't all £275 calendars. Nearly two-thirds of gift set sales were for sets under £30. Plenty of your customers will have a modest budget, and you should make them feel just as welcome as the big spenders.

The dates to know

• The advent calendar went on sale online on 8 September 2026 for the waitlist and Deluxe members, and online and in store for everyone from 10 September.
• Black Friday falls on 27 November 2026. Space NK had a sign-up page live in September but hadn't announced its dates or offers. Find out from your store.
• Late December is a big moment for fragrance, going by the Circana growth figures above.
• Expect returns after Christmas. Space NK's standard window is 28 days with proof of purchase. Check in training whether any Christmas rules apply.

Gift sets and the advent calendar

Space NK's Christmas pages group gifts into under £30, under £50, under £100, and luxury gifts. That's a ready-made structure for any gift conversation: ask the budget, then go to the right shelf.

Some of the brand copy on those pages looked like it had carried over from previous years when I checked. Learn the real gift sets once they're in your store.

The advent calendar is the headline:

• £275, described as "worth over £1,200".
• 35 products, 26 of them full-size, with no repeats from 2025.
• Five per customer, no vouchers or discounts, can't be gift wrapped, and can only be returned if completely intact in its original packaging.

The 2025 one sold out in two and a half weeks. By late September 2026, the product page was showing "Notify Me", which may mean it had sold out online. I couldn't confirm it. Before you tell anyone it's available, or not, check what your store has.

Gifting consultations

Most of your Christmas conversations will be with someone buying for someone else. The trick is that you're consulting on a person who isn't there.

The core questions, every time:

• Who's it for, and how do you know them?
• What do they already use or wear? Any favourite brands?
• Do they like scent? Which ones?
• Do you know their skin type?
• Do they like trying new things, or sticking to favourites?
• What's your budget?

Then offer the free gift wrapping, and find out in training how gift receipts work in your store.

Here's how that plays out for the people you'll meet most. These are ways to think, not scripts, and not product recommendations. The products you'll learn in store.

For a partner

The buyer often knows more than they think. Ask what their partner uses every morning, what's on their side of the bathroom shelf, what scent they wear. "What have they run out of recently?" is a good question, because a luxury version of something they use every day is almost always welcome.

If they're nervous about scent, a gift set with a few options, or something that isn't scent at all, is safer.

For a mum

Ask what she already loves and whether she likes to be treated or prefers practical things. A lot of people buying for their mum want something she wouldn't buy for herself. Bath and body or home fragrance can work well when you don't know her skin. Space NK's own label includes bath, body and home fragrance.

For a man

Ask what his routine actually is, which might be very little. Does he shave, have a beard, wear fragrance, and what style? Don't assume he wants something marketed at men. Space NK describes its own bath, body and home scents as gender-neutral, for instance.

For a teenager

Ask the age. For a young teenager, be careful with strong actives. A GP quoted in a February 2026 article said products with retinol and acids "can really do damage to the skin barrier when used by tweens." Steer towards gentle skincare, fun makeup, body care, bags or accessories, and mention it to the parent if they're the one buying.

For an older teenager, ask what they're into. They may know the brand names better than you do. In November 2024 Space NK said its fastest-growing customers were the under-25s, up 164 per cent.

For a Secret Santa

Usually a fixed budget and a person the buyer doesn't know well. Go straight to the under-£30 gifts, and to things that don't depend on skin type or scent preferences. Remember that 65 per cent of last year's gift set sales were under £30, so it's a shelf worth knowing well.

Stocking fillers

Smaller things for the bottom of a stocking. Minis and gift sets are the obvious place to look, and Space NK's own makeup bags come in different colours and sizes. The under-£30 section is your friend. Learn what's in it early, because you'll be sending people there all day.

Surviving December

Now the part that's about you, not the customer. This is advice, and it's the most important advice in this chapter.

Your feet

You'll be standing for long shifts on hard floors. The TUC's guidance on work footwear quotes an HSE estimate (undated) that almost 200,000 people have leg or foot problems caused or made worse by their work. It adds: "Often one of the causes is prolonged standing."

The TUC's guidance on shoes:

• The heel "should have a broad base and be no higher than 4cm. If worn for long stretches they should be no more than 2cm in height."
• The sole "should be strong and flexible with shock absorption to cushion the jolts of walking on hard surfaces."

What I'd do:

• Break in your work shoes before December, not during it. New shoes on a long Saturday shift are misery.
• Low, broad heel. Cushioned sole. Check the store's dress code first.
• Shift your weight and move during quiet moments. Walk the floor, tidy a tester unit, restock.
• Keep a second pair of comfortable socks in your bag.

Your energy

• Eat properly before a shift and on your break. Skipping lunch on a busy day feels efficient and makes the afternoon much harder.
• Drink water, and keep a bottle where you can reach it on a break.
• Take your breaks. The TUC guidance says that where long standing is needed, there should be "sufficient breaks". The busiest days are exactly when you need them.

The bus

Two hours each way on the bus is four hours a day on top of your shift. That's a long day. Some thoughts:

• Use the journey in. It's a good time to read up on a brand or a product you were asked about yesterday. This guide is on your phone for exactly that.
• Rest on the journey home. Don't feel you have to be productive. Listen to something, or sleep.
• Plan for delays. Winter weather and Christmas traffic both slow buses. Know your later options, and tell your manager early if you're going to be late.
• Keep a phone charger and a snack in your bag.
• Check your hours. Stores stay open later on some days (Princes Square is normally open to 7pm on Thursdays), and Christmas hours often change. Make sure your last bus fits your shift.

Queues and difficult moments

Usdaw, the shopworkers' union, said in December 2023 that "incidents of verbal abuse are much worse in the run up to Christmas, when shops are busy, customers are stressed and things can boil over." Most of its members work in grocery and general retail, not luxury beauty, so this isn't a prediction for your shop. But it's the time of year to be ready.

• Acknowledge people waiting. "Thanks for waiting, I'll be with you in a moment." Often, frustration is about feeling ignored.
• Keep calm and quiet, even if they aren't.
• Don't take it personally. Someone snapping at you over a sold-out calendar is stressed about Christmas, not about you.
• Call a supervisor early. You don't have to handle anything alone.
• Your safety comes first.

Looking after yourself

You'll have good days and flat ones. A few things that help:

• Sleep. Early starts, late finishes and the bus will add up. Protect your sleep over anything else.
• Say if you're struggling. To your manager, a colleague, or us. Space NK lists a wellbeing app among its staff benefits. Ask whether seasonal staff can use it.
• Remember what it's for. A few months of this teaches you more about business and people than a lot of lectures do.
• Enjoy it. Christmas in a beauty shop is busy, but people are buying presents for someone they love. You get to help with that.

Staying on after Christmas

If you enjoy it, say so. Indeed Flex, a UK staffing firm, says: "Yes, Christmas temp jobs can lead to permanent employment. Employers often hire top-performing Christmas staff for permanent vacancies". It also suggests showing "your willingness to work flexible hours, including evenings and weekends".

A good time to ask your manager is early December. The chapter on the bigger picture says more about what this job can lead to.

Remember this

• Fragrance sales in the last week of 2024 were up 97 per cent on the year before.
• 65 per cent of Space NK's gift set sales last Christmas were under £30.
• Gift questions: who, what they use, scent, skin, budget.
• Offer the free gift wrapping; check how gift receipts work in training.
• Advent calendar: check what your store has before promising anything.
• Break in your shoes before December. Eat, drink, take your breaks.
• Acknowledge the queue, stay calm, call a supervisor early.

12The Bigger Picture

You're studying International Business, and you've just walked into a live case study. A British retailer, bought by an American one in July 2025, with a new chief executive, a new Glasgow store and, since summer 2026, Sephora in Glasgow too. This chapter is about the market you're working in and what the job can do for you.

Every figure here has a date and a source, because market figures move and different firms measure different things. Where two numbers look like they disagree, it's usually because they're measuring different markets.

The UK prestige beauty market

"Prestige" beauty means the premium end: the brands Space NK sells, rather than the supermarket shelf.

Circana's figures for 2024 (reported in February 2025), the latest full-year UK prestige figures I found:

• The market grew by 10 per cent in value. CEW UK's write-up put the industry at about £4 billion (I didn't capture the exact sentence, and it didn't make clear exactly which market that covers).
• Skincare and body care grew 18 per cent.
• Makeup grew 15 per cent (from a summary of the same report; I didn't capture the exact sentence).
• Fragrance grew 8 per cent in department stores and 12 per cent in other retail channels.
• Hair care grew 34 per cent in department stores.
• Online sales grew 13 per cent, and shop sales 9 per cent.

So both online and shops grew. The shop isn't dying; it's growing more slowly.

In 2025, Circana reported the UK as one of the strongest markets in Europe. The British Beauty Council, citing Circana in August 2025, said UK prestige beauty was up 7.3 per cent and the UK was the second-fastest growing of the EU5, behind Spain (from a summary of that page; I didn't capture the exact sentence). The page didn't say which period that covered. In October 2025, Circana said Europe's prestige market was up 3 per cent for the year so far, "with Spain, the UK, and Italy outperforming the total market."

A wider view from Mintel, a different research firm with different definitions:

• The UK beauty and personal care retail sector "unexpectedly contracted" by 1.5 per cent in 2025, to £13.2 billion in specialist sales, while total spending on the category rose 6.6 per cent. In other words, people spent more on beauty, but less of it went through specialist beauty shops. One section heading in that Mintel report reads "Space NK comfortably outperforms rivals in 2025". The figures behind it are in the paid report, which I didn't see.
• Mintel estimated prestige beauty and personal care sales at £3.4 billion in 2023, and the fragrance market at £1.3 billion in 2023.

Don't compare Mintel's £13.2 billion with the £4 billion figure. They measure different things.

Globally, McKinsey's 2026 State of Beauty report expects the beauty market "to grow by 5 percent annually, reaching $590 billion by 2030". For Europe, it expects brands to hold back on price rises "due to consumer price sensitivity, selective trading down, and the uptake of more affordable products."

The trends you'll see on the shop floor

Price and value

This is the big one. Mintel found in 2026 that 79 per cent of beauty and grooming users "have noticed products becoming more expensive". McKinsey says shoppers are "more willing to mix prestige and mass purchases into their beauty routines." And Space NK's own Andy Lightfoot said in January 2026 that "customers are value-sensitive nowadays, and are shopping high and low."

In Europe, Circana found in October 2025 that mid-range skincare brands made up 27 per cent of skincare sales and were growing 6 per cent, "while sales for prestige skincare brands are flat."

Dupes

Mintel found in February 2024 that 42 per cent of prestige BPC buyers "have purchased a 'dupe' version of their favourite product." (BPC means beauty and personal care.) Cosmetics Business describes Superdrug's offer as "great value, trusted advice, exciting brands and everyday affordability". That's who the dupe customer is comparing you with.

Fragrance

McKinsey's 2026 report says fragrance has overtaken colour cosmetics to become the third-largest beauty category globally, and "is likely to grow most consistently across price tiers." You saw in the Christmas chapter how big fragrance gets in December.

Skincare and the microbiome

Mintel's UK facial skincare report (published May 2026) says 52 per cent of facial skincare users "prioritise the skin microbiome over anti-ageing products". Expect customers to ask about skin barrier and microbiome products.

K-beauty

Korean beauty is booming in the UK:

• TikTok Shop reported a 125 per cent "surge in K-Beauty searches" on its UK platform in 2025, and says #kbeauty is "the third most-used beauty hashtag in the UK on TikTok".
• Boots said in December 2025 that it "sold one K-beauty product every 15 seconds".
• Superdrug has "400 K-beauty products", according to Cosmetics Business in July 2026.

TikTok

TikTok Shop said beauty sales on its UK platform grew 60 per cent year on year in 2025, and calls itself "the UK's fourth-largest beauty retailer" (based on 2024 data, and its own claim). Lookfantastic "became the number one UK beauty retailer on TikTok Shop", according to its owner THG. In the US, McKinsey says TikTok is only about 2 per cent of beauty sales but "the fastest-growing beauty retailer". Expect customers to arrive with a video on their phone and a product name you've never heard of.

Young shoppers

• In November 2024 Space NK said its fastest-growing customers were the under-25s, up 164 per cent.
• Business of Fashion headlined Space NK's new London megastore in July 2025 as a bet on young shoppers.
• Globally, Glossy reported Mintel's projection that by 2029 "Gen Alpha's spending power will reach $5.5 trillion."

Wellness

Boots reported in December 2025 that searches for marine collagen were up 227 per cent and collagen sales up 62 per cent on the year before. (I read those figures on Boots' page but didn't capture its exact sentences.)

The competition in the UK

Boots. In March 2023 it had "170 revamped beauty halls across the UK and Ireland" and a "1,000-strong Beauty Crew" offering "brand-neutral beauty and skincare advice to customers for free". That's close to Space NK's own idea of unbiased advice. Boots also says over 790 of its pharmacists have done advanced dermatology training, and calls No7 "the UK'S No1 skincare brand" (Boots' own claim).

Superdrug grew sales 5.2 per cent to £1.7 billion in 2025, with pre-tax profit of £144.1 million (figures from a summary of a Cosmetics Business article; exact wording not captured). It competes on value.

Sephora, owned by LVMH, came back to the UK in 2023 with stores at Westfield London and Westfield Stratford City. It had already bought the online retailer Feelunique for £132 million in September 2021 (from a summary of a Retail Gazette article; exact wording not captured).

Cult Beauty and Lookfantastic are online retailers owned by THG. According to Wikipedia, THG bought Cult Beauty in August 2021 for £275 million. THG's revenue rose 2.3 per cent to £1.71 billion in its 2025 financial year (figures from a summary; exact wording not captured).

Department stores. Selfridges reopened its London Beauty Hall in May 2024 after a 12-month revamp, with 300 brands and more than 200 beauty services (figures from a summary; exact wording not captured). Liberty has opened a Beauty Studio for "next-generation names".

The competition in Glasgow

This is where it gets personal.

Sephora opened in Scotland in summer 2026. First at Edinburgh's St James Quarter in July, then at Silverburn in Glasgow, reported on 13 August 2026. Retail Gazette described Silverburn as Sephora's 18th UK store (from a summary of the article). The Glasgow store covers 4,940 square feet and uses Sephora's "Beauty Scan technology", a lens operated by an advisor to assess things like skin oil and hydration.

Sephora UK's managing director, Sarah Boyd, said: "we knew beauty lovers in the west of Scotland were ready for Sephora too."

A BeautyMatter article in March 2026 put it simply: "Currently, SpaceNK has stores in Glasgow and Edinburgh, making it a direct competitor to the new Sephora doors." Note that Space NK has a store in St James Quarter and a store at Silverburn, the same two centres Sephora chose.

If you're at Silverburn, Sephora is in the same shopping centre. So is H beauty, owned by Harrods, which BeautyMatter said had "recently opened" there. When Space NK announced Silverburn, the Glasgow Chamber of Commerce said it would be "joining existing beauty destinations such as H beauty and Boots".

If you're at Princes Square, you're on Buchanan Street, which Visit Glasgow calls "the heart of Glasgow's shopping scene". Princes Square itself is described as "a luxury shopping centre on Buchanan Street". Nearby:

• John Lewis at Buchanan Galleries, at the top of Buchanan Street, which announced a £20 million upgrade (figure from a summary of the page) including "a bigger, brighter Beauty Hall" and "a new Fragrance Hall plus a dedicated Gift Emporium". The page gave no completion date.

According to Wikipedia, Harvey Nichols has no Glasgow store; its Scottish store is in Edinburgh.

What makes Space NK different, in the sources' words: Ulta's chief executive called it "a differentiated beauty experience that inspires consumers through tailored product mixes." TheIndustry.beauty says it positions itself as "a more premium retailer than the likes of Boots, Superdrug and Sephora in the UK." Its new chief executive names "trusted curation and service excellence". My summary: curation, service and exclusives are how Space NK competes with Sephora.

Why the shop floor matters to all of this

McKinsey's 2026 report has a line that sums up your job from the boardroom's point of view: retailers "will need to determine how in-store guidance, creator content, AI-powered personalization, and exclusive offerings can give consumers a reason to choose them". And: "Without a differentiated assortment or shopping experience, consumers are more likely to default to the retailer offering the best value or greatest convenience".

In plain terms: if the shop doesn't give people something they can't get online, they'll buy online. You're the something.

A case study for your degree

The Ulta deal is a live example of cross-border expansion:

• Ulta, a US-listed company, bought a British retailer on 10 July 2025 as part of its "Ulta Beauty Unleashed" plan. Its chief executive called it a way "to enter the growing UK market with a successful and growing brand."
• It chose to run Space NK as a standalone subsidiary under its existing management, rather than rebrand it.
• It has said it wants "to really protect what makes Space NK really unique", while hinting that the two brands might one day co-exist in the US.
• Lightfoot said the new owner let the business think "not over a three-year time horizon, but over a 10-year time scale".
• A year later, the chief executive changed, and a senior retail and ecommerce leader arrived from Ulta.

That's a lot of International Business material: market entry by acquisition, preserving a local brand, integration, leadership change. Keep your coursework to what's public: the press releases, the trade press and the published accounts. Anything you learn inside the company stays inside the company. Your own reflections should be about your own skills and what you learned about serving customers.

What this job does for your CV

Prospects, the UK graduate careers site, says: "Shop floor experience is highly respected. There is no real substitute for working with customers, dealing with deliveries, stock taking and working as part of a retail team."

It lists what retail employers look for: "adaptability", "excellent teamworking ability", "strong decision-making ability", and "a proactive nature and the ability to work off your initiative". You'll use every one of those by Christmas Eve.

When you write this up, translate it into business language:

• Selling against targets and KPIs.
• Customer acquisition for a loyalty scheme (NDULGE).
• Stock handling and replenishment during the peak trading period.
• Customer insight: what people ask for and what they're worried about.
• Working in a brand-partner model, trained by Space NK and by the brands.
• Working inside a business going through a cross-border acquisition and a leadership change.

Space NK's training includes its own training, brand training, classroom and virtual sessions, and short learning modules. Ask which of these apply to seasonal staff, and take everything that's offered.

Beyond Christmas

Staying on. Space NK has advertised an 8-hour Beauty Advisor role at Edinburgh St James Quarter. If you'd like to stay, ask your manager in early December. Indeed Flex says employers "often hire top-performing Christmas staff for permanent vacancies".

Graduate schemes. Prospects lists Harrods and John Lewis among the retailers running graduate schemes (my summary of its page). I looked at several beauty companies' schemes too, but couldn't verify the details, so I've left them out. Check them yourself when the time comes.

One to do now: the Inside LVMH Certificate. LVMH, the luxury group that owns Sephora, runs a free, certified, fully online 30-hour "learning program". Applications for the October 2026 group close at 11:59pm UTC on 12 October 2026. If that's passed, look for the next intake. It would sit very well on the CV of an International Business student working in luxury beauty, and it costs nothing but your time.

Remember this

• UK prestige beauty grew 10 per cent in 2024 (Circana).
• Customers are shopping high and low, and 42 per cent of prestige beauty buyers had bought a dupe (Mintel, 2024).
• K-beauty, TikTok and fragrance are the big trends.
• Sephora opened at Silverburn in August 2026 and St James Quarter in July 2026.
• Space NK's edge: curation, unbiased advice, exclusives and service.
• The Ulta deal is a case study for your degree. Use public sources only.
• Inside LVMH Certificate: apply by 12 October 2026.

13Cheat Sheets

This chapter is for quick reference. Dip into it on the bus, or glance at it before a shift. It pulls together what was selling, what customers rate most highly, small gifts, and a matchmaker for the requests you'll hear most often.

Every price here is as it was on Space NK's website on 29 September 2026. Prices change, offers come and go, and Christmas stock turns over fast, so check the shelf or the till before you quote anything. Your Space NK training and your managers always come first.

What was flying off the shelves

Some product tiles on Space NK's website carry a small badge that says "N sold this week". Not every product has one, and the number changes every week. It doesn't say whether it counts shop sales, online sales or both, so treat it as a rough signal of what's popular, not a league table.

These were the highest counts on 29 September 2026:

• Summer Fridays, Sweet Summer Minis, £21. 1,443 sold that week. A set of the brand's minis, filed under lip treatments. The brand is famous for its Lip Butter Balm.
• Biodance, Bio Collagen-Real Deep Mask, £15. 1,071 sold. A hydrogel sheet mask you leave on for hours or overnight until it turns see-through. It shows up twice on the site, under Biodance and under Soko Glam, with the same count, because many Biodance products are listed under the Soko Glam name.
• Charlotte Tilbury, Exagger-Eyes Easy Eyeshadow Sticks, £27. 653 sold. Glide-on eyeshadow sticks in 12 shades, designed to be crease-proof and waterproof.
• Aesop, Resurrection Aromatique Hand Wash 500ml Refill, £32. 497 sold. The refill for Aesop's famous hand wash, with mandarin, cedar, rosemary and lavender oils.
• Westman Atelier, Suprême Bio-Complex Liquid Foundation, £65. 480 sold. A silicone-free, serum-like foundation with peptides.
• Biodance, Collagen Peptide Eye Patches, £21. 472 sold. Eye patches with collagen water, peptides and caffeine, designed to refresh tired-looking eyes. Also listed twice.
• Kiehl's, Creamy Eye Treatment With Avocado, £30. 471 sold. An eye cream with avocado oil and caffeine, described as suitable for sensitive skin.
• Color WOW, Money Mist, £12.50. 446 sold. A leave-in for dry, frizzy hair.
• Sol de Janeiro, Find Your Sol Cheirosa Discovery Set, £35. 420 sold. A discovery set from the brand's Cheirosa family of perfume mists.
• Space NK, Mini Travel Bag, £16, and Large Travel Bag, £36. 411 and 407 sold. Space NK's own travel bags with a clear panel, in several colours. The medium one is £26.
• Charlotte Tilbury, Airbrush Flawless Blush Blur, £35. 407 sold. A finely milled powder blush, designed to last up to 16 hours.
• Living Proof, Perfect hair Day (PhD) Advanced Clean Dry Shampoo, £15. 387 sold. The brand's best-known line is its PhD dry shampoo.
• Phlur, Father Figure Eau de Parfum, £32. 378 sold. A green fig scent with a musky vanilla base.
• Armani Beauty, Luminous Silk Foundation, £49. 375 sold. The brand's award-winning radiant foundation.
• Phlur, Vanilla Canyon Eau de Parfum, £32. 369 sold. A warmer vanilla with oak wood, wild honey and plum.

Notice the pattern: small treats (masks, patches, minis, a £12.50 mist) sit alongside £49 and £65 foundations. The badges show people buying across the price range.

The most-loved products

These are products with a high star rating from a lot of reviews, taken from Space NK's website on 29 September 2026. A high score from thousands of people is more meaningful than a perfect score from five. When a customer is nervous about a new brand, "thousands of people have reviewed this" is a fair reassurance, as long as you don't promise it'll suit them.

Skincare

• Elemis, Pro-Collagen Cleansing Balm, £55. 4.9 from 3,688 reviews.
• RMS Beauty, Kakadu Beauty Oil, £66. 4.9 from 1,093 reviews.
• Youth To The People, Superfood Cleanser, £35. 4.8 from 5,590 reviews.
• Medik8, Advanced Night Restore, £62. 4.8 from 3,041 reviews.
• Dr Sam's, Flawless Cleanser, £20. 4.8 from 2,794 reviews.
• SKIN1004, Madagascar Centella Probio-Cica Essence Toner, £22. 4.8 from 2,625 reviews.
• Medik8, Crystal Retinal 3, £50. 4.7 from 4,281 reviews.

Makeup

• NARS, Radiant Creamy Concealer, £29.50. 4.7 from 8,079 reviews. The travel size is £17.
• Rare Beauty, Soft Pinch Liquid Blush, £24. 4.8 from 6,948 reviews.
• Anastasia Beverly Hills, Dipbrow Pomade, £24. 4.7 from 6,295 reviews.
• VIEVE, Skin Nova, £33. 4.8 from 2,233 reviews.
• Lisa Eldridge Beauty, Seamless Skin Enhancing Tint, £39. 4.8 from 2,000 reviews.

Hair

• Philip Kingsley, Elasticizer Deep-Conditioning Treatment, £41. 4.8 from 2,754 reviews.
• Color WOW, Kale Cocktail, £26.50. 4.8 from 1,685 reviews.
• Amika, Superfruit Star Lightweight Styling Oil, £18. 4.8 from 1,097 reviews.

Body

• Sol de Janeiro, Brazilian Bum Bum Cream, £48. 4.8 from 26,977 reviews, the most reviewed product on this list by a long way.
• Sol de Janeiro, 4Play Shower Gel, £23. 4.8 from 6,617 reviews.
• Aesop, Resurrection Aromatique Hand Wash, £34. 4.8 from 1,191 reviews.

Fragrance and home

• YSL Beauty, Black Opium Eau De Parfum, £137. 4.8 from 16,455 reviews.
• YSL Beauty, LIBRE Eau De Parfum, £75. 4.8 from 11,525 reviews.
• Sol de Janeiro, Cheirosa '62 Perfume Mist, £25. 4.7 from 5,518 reviews.
• Armani Beauty, Stronger With You Aftershave, £110. 4.7 from 3,608 reviews.
• Diptyque, Baies Classic Candle 190g, £63. 4.8 from 981 reviews.

Stocking fillers under £25

These all came from the brand best-seller lists on 29 September 2026, and all cost £25 or less. They're grouped by type so you can go straight to the right shelf.

Lips

• Starface, Star Balm, £6. A flavoured lip balm in collectable flavours.
• Hello Sunday, The One For Your Lips Tinted Lip Balm, £11. An SPF 50 balm with a cherry tint.
• Glossier, Balm Dotcom, £16. A multi-purpose balm that also works on cuticles and dry patches.
• Anastasia Beverly Hills, Kiss Theory Lip Balm, £17. A vanilla-scented gel-balm with colour and shine.
• Summer Fridays, Lip Butter Balm, £23. The icon, in lots of flavours.

Skincare minis and masks

• PATCHOLOGY, FlashPatch Illuminating Eye Gels, single pair, £3.20. The card calls single pairs perfect stocking fillers.
• SKIN1004, Madagascar Centella Watergel Sheet Ampoule Mask, £4. A single calming sheet mask.
• Dr. Jart+, Ceramidin Facial Barrier Mask, £8.50. A single hydrating sheet mask.
• Tata Harper, 5 Minute Facial Skinset, £14.40. Minis of the cleanser and resurfacing mask.
• Biodance, Bio Collagen-Real Deep Mask, £15. The week's big seller.
• Goldfaden MD, Radiance Boosting Starter Kit, £21. Four minis, a cheap way to try a dermatologist brand.

Hair

• Color WOW, Sleigh Frizz Bauble, £13. A festive bauble holding a 50ml Dream Coat.
• OUAI, Leave In Conditioner, Melrose Place, £14. Detangles, softens and protects from heat.
• Aveda, One For All Leave-In Elixir, £15. A light leave-in for all hair types.
• Hunza G, Original Crinkle Scrunchie, £20. The crinkle scrunchie, in lots of colours.
• Tort, Toto Clip in Spiced Tortoiseshell, £23. A claw clip for fine or thick, heavy hair.
• Slip, Pure Silk Skinny Scrunchie Trio Ornament, £25. Three silk scrunchies in a hanging ornament.

Body and hands

• Herbivore, Coco Rose Milky Body Mist, £9. One of the most affordable gifts in the shop.
• Nursem, Caring Hand Cream, £10. Developed by nurses, with a giving-back promise.
• Touchland, Power Mist Hydrating Hand Sanitiser, £10. Scented pocket mists, such as Wild Watermelon.
• Navy Professional, Cuticle Serum Pen, £10. A click pen for dry cuticles.
• This Works, Dream Team Set, £10.
• NEOM, Perfect Night's Sleep Duo, £17. A small bath foam and body butter for winding down.
• Saltair, Salt Water Vanilla Body Wash, £17. A sweet, beachy vanilla scent.

Fragrance and home scent

• Saltair, Salt Water Vanilla Body Mist, £15.
• Jo Malone London, Cologne Discovery Collection, £20. Five 1.5ml colognes.
• Gisou, Hair Perfume Cherry Chocolate, £20. Scents hair and adds shine.
• DedCool, Best Sellers Discovery Set, £21. Six small samples for mixing and layering.
• Olverum, Restful Sleep Pillow Mist, £22.50.
• KAYALI, Discovery Layering Set 06, £25. Ten small samples.

No candle made the under-£25 best-seller list, so for a small candle, check what your shop has.

Tools and accessories

• 19/99, Precision Pencil Sharpener, £6.
• Space NK, Burgundy Creaseless Clips, £10. Four festive hair clips.
• Clomana Beauty, Marshmallow Sponge, £11.
• Charlotte Tilbury, Powder Puff Duo, £15.
• Beautyblender, The Original Beauty Blender, £17.
• Space NK, Burgundy Stocking, £18. A velvet stocking to fill with all of the above.

If a customer says...

This is a matchmaker. Each option comes from what the brand cards say about who a product suits. It's a starting point for a conversation, not a prescription: ask your questions first, let them try textures, and follow your training.

Anything that sounds medical (a diagnosed condition, a rash, medication) goes to a pharmacist or GP; pregnancy to a midwife, GP or pharmacist; hair loss to a GP first; swelling of the face or throat, or trouble breathing, is 999 straight away. You're there to help them choose a product, not to diagnose.

"My skin is really dry."

• BYOMA, Hydrating Milky Moisturiser, £15. BYOMA's card points dry skin to its Milky range. Every product has the brand's ceramide blend.
• Kiehl's, Ultra Facial Cream, £37. A light, fragrance-free moisturiser for all skin types, especially drier skin.
• Tatcha, The Dewy Skin Cream, £69. Space NK's own tip is that it suits dry to very dry skin.

"I'm oily and I break out."

• Dr Sam's, Flawless Cleanser, £20, and Flawless Moisturiser, £32. A simple, fragrance-free routine for breakout-prone and sensitive skin.
• BYOMA, Moisturising Gel Cream, £13. An oil-free gel for combination, oily and blemish-prone skin.
• Paula's Choice, Skin Perfecting 2% BHA Liquid Exfoliant, £36. For blackheads, breakouts and pores. The brand says start every other day.
• For the odd spot, Starface Hydro-Stars start at £11.

Several cards say it plainly: persistent or painful acne is a question for a pharmacist or GP, not a product.

"My skin is sensitive, or goes red."

• Dear, Klairs, Supple Preparation Unscented Toner, £21, or Rich Moist Soothing Cream, £25. For sensitive, dry or redness-prone skin, at a low price.
• Purito Seoul, Wonder Releaf Centella Serum Unscented, £20. Fragrance free, designed to calm redness.
• Erborian, CC Red Correct, £38.50. A green-tinted cream designed to cancel the look of redness, made for fair, sensitive skin.

Redness that's persistent or sore goes to a GP or pharmacist.

"My skin looks dull. I want a glow."

• Dermalogica, Daily Microfoliant, £19. Dermalogica's card points dull skin here.
• Youth To The People, Superberry Hydrate + Glow Dream Mask, £48. An overnight mask for dull, dehydrated skin.
• Sunday Riley, CEO 15% Vitamin C Brightening Serum, £70. For combination and oily skin; the card points dull skin to the CEO range.

"I want to try a retinoid for the first time."

• The INKEY List, Starter Retinol Serum, £13. The card calls it the beginner's option.
• Alpha-H, Vitamin A Serum with Retinol, £50. Pitched at first-time retinol users, used on alternate evenings.
• Medik8, Crystal Retinal 3, £50. A gentle beginner retinal, or Crystal Retinal 1 (£45) for very sensitive skin.

Retinoids mean sunscreen the next morning. Anyone pregnant or breastfeeding should ask a midwife, GP or pharmacist first, and anyone on medication a pharmacist or GP.

"I'm worried about fine lines."

• The INKEY List, Bio-Active Ceramide Repairing and Plumping Moisturiser, £20. Designed to strengthen the barrier and blur fine lines.
• Caudalie, Resveratrol-Lift serum, £48. Designed to smooth and lift, without retinol.
• Medik8, Liquid Peptides Advanced MP, £82. The card points mature skin here.

"I've got dark spots."

• Anua, Niacinamide 10% + TXA 4% Serum, £22. Aimed at dark spots and uneven tone.
• Facile, Brighten Targeted Serum, £30. Designed to fade the look of dark spots and calm redness.
• Caudalie, Vinoperfect serum, £52. For dark spots, pigmentation and acne marks.

"I need an SPF I'll actually wear every day."

If they ask whether they need it every day in Scotland, chapter 5 has both sides: the British Association of Dermatologists says year-round use is unnecessary for most people in the UK, while some conditions, retinoids and acids change that. Help them choose; don't tell them they must.

• Beauty of Joseon, Relief Sun, £15.50. The original for drier skin, Aqua-Fresh for oily.
• Ultra Violette, Supreme Screen SPF 50+, £34. The card says it's for most people.
• Supergoop!, Unseen Sunscreen SPF50, £36.50. A clear gel for people who say they hate sunscreen.

"I want a new foundation."

Shade-match in store every time.

• Fenty Beauty, Pro Filt'r Fluid Flex Foundation, £35. Fifty shades, for anyone who struggles to find theirs.
• Armani Beauty, Luminous Silk Foundation, £49. Space NK says it suits all skin types, including sensitive, acne-prone and oily.
• NARS, Light Reflecting Foundation, £45. Radiant, 51 shades, best for normal to dry skin.

"I've got curly hair."

• JVN Hair, Complete Air Dry Cream, £12. For frizzy, wavy, curly or coily hair.
• Briogeo, Curl Charisma Frizz Control Gel, £21. For wavy, curly and coily hair, defining without crunch.
• Bumble and bumble, Curl Defining Cream, £31. From loose waves to ringlets.

"My hair is damaged, or I've bleached it."

• Olaplex, No.3 PLUS Complete Repair Treatment, £32. The start of the 3-4-5 routine.
• K18, Leave-in Molecular Repair Hair Mask, £30. For bleached, coloured or heat-damaged hair.
• Hair by Sam McKnight, Stronger Love Spray, £32. For dry, bleached and coloured hair.

"I want a perfume for her."

Ask what she already wears first; the fragrance chapter has the full consultation.

• YSL Beauty, LIBRE Eau de Parfum, £75. An orange blossom and lavender floral, and an easy gift win.
• Jo Malone London, English Pear & Freesia Cologne, £56. The brand's top seller, a light fruity floral.
• Phlur, Coffret Set, £59. Four minis, rated 4.8 from 136 reviews, a good first gift.

"I want a perfume for him."

• Bulgari, Man Wood Essence Eau de Parfum, £87. The card suggests Bulgari for a man who likes woody or ambery scents.
• Creed, Men's Inspiration Fragrance Set, £49. Five tiny bottles, including Aventus, an affordable way into the house.
• Parfums de Marly, Layton Eau de Parfum, £225. Described for men: apple, lavender, vanilla and coffee.

Plenty of scents are unisex, so don't let "for him" or "for her" narrow things too far.

"I want a candle, or something for the home."

• Space NK, Shimmering Spice Candle 190g, £28. Cinnamon, cedar and allspice; also £18 for 75g.
• NEOM, Winter Wellbeing Candle Trio, £48. Three travel candles, a ready-made Christmas gift.
• Diptyque, Baies Classic Candle, £63. Blackcurrant and rose; the Mini Candle is £37.

"It's for a teenager."

• BYOMA. Space NK's brand page says it's a great option for teens, and almost all of it costs £20 or under.
• Starface, Star Balm, £6. Fun, cheap, and very giftable.
• Rare Beauty, Soft Pinch Matte Liquid Blush Mini, £15. The card names younger customers.
• DedCool, Best Sellers Discovery Set, £21. The card suggests DedCool for younger customers.

"Money's no object."

• La Mer, Crème de la Mer, £465. The icon, or the £150 Day & Night travel set as a way in.
• Slip, Pure Silk Queen Pillowcase Gift Set, £127. Pillowcase plus two scrunchies.
• Dyson, Airwrap i.d. Multi-Styler and Dryer, Curly + Coily, £479.99. For someone who styles with heat and wants to invest.
• Creed, Aventus Eau de Parfum, £310. Space NK calls it the crowd favourite.

Let big-budget customers take their time. A big purchase deserves a proper conversation.

Price ladders

When someone likes the idea of a product but not the price, it helps to know what sits on the rungs below and above. Each list goes from lowest to highest price.

Cleanser

• Purito Seoul, Mighty Bamboo Panthenol Cleanser, £13.
• The INKEY List, Oat Balm Cleanser, £15.
• Dr Sam's, Flawless Cleanser, £20.
• Youth To The People, Superfood Cleanser, £35.
• Elemis, Pro-Collagen Cleansing Balm, £55.
• Eve Lom, Cleanser, £100 for 200ml. There's a £20 travel size.

Moisturiser

• BYOMA, Moisturising Gel Cream, £13.
• The INKEY List, Bio-Active Ceramide Moisturiser, £20.
• Kiehl's, Ultra Facial Cream, £37.
• Drunk Elephant, Protini Polypeptide Cream, £92.
• Augustinus Bader, The Cream, £250.
• La Mer, Crème de la Mer, £465.

Vitamin C serum

• Dear, Klairs, Freshly Juiced vitamin C serum, £22.
• Some By Mi, Galactomyces Pure Vitamin C Glow Serum, £22.
• Innisfree, Green Tea Enzyme Vitamin C Brightening Serum, £25.
• Sunday Riley, CEO 15% Vitamin C Brightening Serum, £70.
• Drunk Elephant, C-Firma Fresh Day Serum, £73.
• SkinCeuticals, C E Ferulic, £169.

Several of the cards say to use vitamin C in the morning, with sunscreen on top.

Mascara

• 19/99, Lash Tint Mascara, £16.
• Glossier, Lash Slick, £20.
• Sweed, Cloud Mascara, £24.
• Kosas, Soulgazer Mascara, £28.
• YSL Beauty, Lash Clash Extreme Volume Mascara, £33.
• Hourglass, Unlocked Instant Extensions Mascara, £34.
• By Terry, Mascara Terrybly, £40.

The trick is to offer a choice, not push a rung. "There's this one at £20, and this one at £34 if you'd like something longer-lasting" lets the customer decide.

Advent calendars

Four advent calendars were listed on 29 September 2026:

• Sisley-Paris, Advent Calendar 2026, £672. Skincare, makeup, fragrance and haircare in full and travel sizes, designed with the Parisian artist Marie-Victoire de Bascher.
• Space NK, Beauty Advent Calendar, £275. Space NK's number one best seller that day. The Christmas chapter has what Space NK said about it.
• Space NK, 12 Days of Fragrance Advent Calendar, £120.
• L'Occitane, Beauty Advent Calendar, £99. Twenty-four skincare, body care and wellbeing products, including a Shea Hand Cream.

Calendars sell out and restock, so check what your shop has before you tell anyone it's available, or not.

Remember this

• Every price here was on Space NK's site on 29 September 2026. Check before you quote.
• "Sold this week" changes weekly and not every product shows it.
• High ratings from thousands of reviews reassure; they don't promise it'll suit this customer.
• Ask the budget kindly, then go to the right rung of the ladder.
• Stocking fillers start at £3.20, so there's something for every budget.
• Match by what the brand says a product suits, and call it the brand's claim.
• Anything medical goes to a pharmacist or GP.
• Shade-match foundation in store, and let people smell fragrance on skin.

14Where This Came From

Every fact in this guide comes from a source, checked on 29 September 2026. Nothing came from memory. Some figures, mostly in the market chapter, come from a summary of the source rather than its exact words. The research notes mark which. This chapter tells you where to look if you want to check something yourself, and it's worth doing: prices change, rules change, and a new owner and a new chief executive usually mean new plans.

The products and the brands

Everything in the A to Z, and the prices and product details elsewhere, came from Space NK's own website (spacenk.com, the UK site) on 29 September 2026. For every brand, that means the brand page, the full list of products in the order the site ranked its best sellers that week, and the product pages of the top sellers: descriptions, key benefits, skin types, ingredients, how to apply, and review scores.

What a product is "designed to do" is always the brand's own claim, not a proven result.

The company

• Space NK's own pages: the About page, the help centre, the NDULGE Rewards pages, the store pages and the careers site, including the advert for Christmas beauty advisors.
• The trade press: Cosmetics Business, TheIndustry.beauty, Retail Gazette, WWD, BeautyMatter, FashionNetwork, BW Confidential, On The Scent, A1 Retail and 365 Retail, for the history, the owners, the chief executives, the stores, the awards and the figures.
• The owners: Ulta Beauty's own announcements, and Manzanita Capital, the previous owner.
• PR Newswire, for Space NK's own press releases (the new chief executive, Cécred, and the 2022 recycling scheme).
• The Irish Times, for a 1997 profile of the founder, Nicky Kinnaird.
• Wikipedia, for the NK initials, Cult Beauty's sale and Harvey Nichols' stores. Treat those as less certain than the rest.
• The British Beauty Council, for the app launch and a 2025 market figure.

The science

• The NHS, and NHS inform in Scotland.
• The British Association of Dermatologists and its patient information site.
• DermNet, a dermatology reference written by dermatologists.
• The American Academy of Dermatology.
• Cancer Research UK, for sun protection.
• Research papers on PubMed, for the evidence behind the ingredients.
• The law itself on legislation.gov.uk and the EU's rules on cosmetics, and the Advertising Standards Authority, for what can and can't be claimed.
• The Perfume Society, for fragrance.
• Cruelty Free International, the Vegan Society and B Lab, for what their labels actually mean.

The shop floor, the market and your career

• Circana (reported by CEW UK and the British Beauty Council), which measures UK prestige beauty sales, and Mintel and McKinsey for the market.
• Glossy, Business of Fashion, TikTok's newsroom and Professional Beauty (the Pai survey), for young shoppers, TikTok and K-beauty.
• Harvard Business Review, for listening.
• Skills You Need, for open and closed questions, and the EHL hospitality school, for luxury service.
• Allergy UK and NHS inform, for reactions and NHS Pharmacy First. Which?, for your customers' legal rights on returns.
• Boots' own newsroom, for Boots' figures. The trade press above covers Superdrug, THG and Sephora.
• John Lewis, Visit Glasgow, the Glasgow Chamber of Commerce, the Glasgow shopping centres and the local press, for the competition in Glasgow.
• Usdaw and the TUC, for working in retail.
• LVMH, Prospects and Indeed Flex, for careers.

The research notes

Behind this guide sit three research files, with every fact, its web address, the date it was checked and the exact words of the source. The ask box has read them. If you want to know where something came from, ask it: "where does the NDULGE tier figure come from?" It'll tell you.

What this guide deliberately leaves out

• Anything internal. Store procedures, the till, staff policies, target figures and discounts are for your training, not a public website.
• Anything unconfirmed. Where a source was weak or I couldn't reach it, the fact was left out, or it's labelled as unconfirmed.
• Medical advice. Cosmetics don't treat conditions. Anyone with a skin condition, a reaction or a question about medication goes to a pharmacist, GP or dermatologist, and pregnancy questions to a midwife, GP or pharmacist. Swelling of the face or throat, or trouble breathing, is 999 straight away.

Remember this

• Product details and prices are as they were on 29 September 2026.
• A brand's description is its claim, not a guarantee.
• The ask box can tell you where any fact came from.
• If this guide and your training disagree, your training wins.