Sephora UK Discount Code: NEW15, 15APPTREAT, Student & NHS 15% — Plus Up to 10% Cashback

Last verified: 8 September 2026 · By The Cashback Chap

Sephora UK is refreshingly upfront: its own voucher page lists the codes. Right now that's NEW15 (15% off your first order) and 15APPTREAT (15% off in the app, new customers), with 15% for students (UNiDAYS/Student Beans) and 15% for NHS/key workers via Blue Light Card, plus the free MySephora loyalty perks. Cashback adds up to 10% for new customers on TopCashback, about 2% standard. Because several of these are "new customer only", the trick is sequencing them. Here's the plan.

Disclosure: cashback links here are my referral links — free for you (you get a £10 bonus). I haven't ordered from Sephora UK through cashback; offers and rates are as listed on the day.

Sephora UK codes and offers (from Sephora's own page)

Code / offer	Saving	Conditions
NEW15	15% off first order	Full-price items; excludes select brands & electricals
15APPTREAT	15% off in the app	New customers, app only, full price
Student (UNiDAYS / Student Beans)	15%	Verified students
NHS / key workers (Blue Light Card)	15%	BLC members
Influencer codes (e.g. NICOLASEPHORA, REALLYREESPH)	15% on eligible full-price items	Brand exclusions; time-limited
MySephora (free)	10% off your two favourite brands; 15% off Sephora Collection	Members
Delivery / samples	Free tracked delivery over £20; 2 free samples on £40+	Everyone

Cashback at Sephora UK

Purchase	TopCashback
New customer	up to 10%
Standard / existing	~2%
App purchases	up to 3%

Sequencing the "new customer" offers

Everything good here is single-use for new accounts, and codes may not stack with cashback unless the listing approves them. My suggested order for a first Sephora UK order:

1. Web, via TopCashback — up to 10% new-customer cashback.
2. Apply NEW15 if it's shown on the cashback listing's approved codes; if not, decide: 15% code vs 10% cashback — the code wins on full-price baskets, cashback wins if most of your basket is excluded from NEW15 (select brands, electricals) or already discounted.
3. Skip 15APPTREAT unless you're choosing the app route deliberately (app cashback is only up to 3%).
4. Join MySephora before checkout for the favourite-brand 10% on future orders.

Worked example (£100 full-price, first order): NEW15 → £85; if approved with cashback → up to £8.50 back → £76.50. If not approved: NEW15 alone → £85; cashback alone → £90. Code wins.

FAQ

What is the Sephora UK discount code for first orders? NEW15 — 15% off your first order on full-price items (some brands and electricals excluded). App users can use 15APPTREAT instead.

Does Sephora UK do a student discount? Yes, 15% via UNiDAYS or Student Beans after verification.

Does Sephora UK give an NHS discount? Yes — 15% for NHS and key workers through Blue Light Card.

Does Sephora UK do cashback? Yes: up to 10% for new customers via TopCashback, around 2% standard, up to 3% on app purchases. Combine with Sephora's codes only where the listing approves them.

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Codes and offers from Sephora UK's voucher-codes page; rates from TopCashback Sephora — as seen 8 September 2026; they rotate; verify before buying. No personal Sephora receipt yet. Sources: Sephora UK voucher codes · UNiDAYS · Blue Light Card · TopCashback Sephora.