According to GLAMOUR’s Beauty Commerce Writer Shani Cohen, “Whenever people ask me what my favourite skincare brand is, I always say Medik8 — and I’ve tested my fair share. I swear by the Crystal Retinal. It’s my all-time favourite and the one product I recommend to everyone.”

Best Amazon Prime Day 2025 K-Beauty deals

If you’re into skincare that delivers serious results without overcomplicating things, K-beauty is always a good place to look – and some of our go-to Korean skincare brands included in our guides to Korean sunscreens, Korean eye creams, Korean moisturisers and Korean face masks are on sale.

Lot’s of the best CoRsx products are reduced – including the COSRX’s Snail 96 Mucin Essence which injects so much glow. Elsewhere, Beauty of Joseon and Haruharu are great for hydration and barrier support. TIRTIR is also in the mix, and if you’ve seen their Red Cushion Foundation or Milk Skin Rice Toner all over TikTok, now’s your chance to try them for less. We’ve also spotted a discount on our favourite Medicube Wrapping Mask, which GLAMOUR’s Shani Cohen has tried and tested – read her full review here.

Looking for a viral K-beauty tool? There’s also an impressive discount on the Medicube Age-R Booster Pro – now £172.95 down from £265.22.

Condé Nast

Medicube Age-R Booster Pro

Best Amazon Prime Day 2025 supplement deals

Skincare isn’t just about what you’re layering atop your complexion – what you’re putting in your body matters just as much. If you’re after that lit-from-within glow, supplements can be a game-changer. The only catch? They’re usually not cheap.

Luckily, we’ve spotted discounts on some of our favourites, including the Vital Proteins Collagen Peptides powder famed for being taken by Jennifer Aniston, and the Free Soul Greens supplement that’s all over TikTok, now 36% off. Both have been tested in our guides to the best collagen powders and best greens powders respectively, scoring highly on their taste, efficacy and formulation.

If you’ve been meaning to give your beauty routine a boost from the inside out, now’s a good time to start.

Best Amazon Prime Day 2025 SPF deals:

Face sunscreens might not be the most exciting step in your routine, but it’s easily the most important – especially if long-term skin health is on your radar. Whether you go for a tinted formula or something shine-controlling, there are a few tried-and-tested favourites we always come back to.

Two worth knowing about? La Roche-Posay’s Anthelios UVMune 400 Invisible Fluid Tinted SPF50+, which gives just enough coverage to even out your skin tone while feeling weightless, and Eucerin’s Oil Control Sun Gel-Cream SPF50+, ideal if you’re prone to oiliness or breakouts. Both layer seamlessly under makeup, offer high UVA/UVB protection, and are currently discounted – so if you take your skincare seriously, now’s a great time to stock up.

More Amazon Prime Day 2025 skincare deals

Retinol is that not-so-secret skincare ingredient that’s known as one of the most effective actives. If you’re after a quality retinol serum, Medik8 Crystal Retinal is a superior choice which is often recommended by board-certified dermatologists across our guides.

Elsewhere, the best-selling Murad Resurgence Retinol Renewal Serum manages to smooth out fine lines and wrinkles like a dream, all the while promoting fast cell turnover and evening out your skin tone. Olay Retinol24 night cream is another great GLAMOUR-approved budget option.

As far as vitamin C serums go, Elizabeth Arden capsulated formula is one of the most effective options on the market when it comes to brightening and hydrating your skin.

If moisture-stripping cleansers aren’t your thing, you’ll love the Sensitive Cleansing Facial Wash from Elemis, and of course, the brands viral Pro-Collagen Cleansing Balm. Made specifically for sensitive skin, this formula purifies and nourishes your complexion in one go. Otherwise, if you’re on the lookout for an fool-proof everyday face wash, make sure to bookmark the CeraVe Hydrating Cleanser, which is suitable for all skin types.

In need of a fresh batch of pimple patches? Say no more. I’m very picky when it comes to this product category, and having tried more than a couple dozen of variations, I can confidently say that Dots for Spots are some of the most effective (not to mention, affordable) pimple patches on the market. They always sell like hot cakes on Prime Day – so I’d stock up on then now if I were you.

Dots for Spots Acne Patches

If you’ve been thinking about investing in an LED mask for a while now, Prime Day is the perfect time to snap one up for less. We’ve spotted GLAMOUR’s top-rated CurrentBody Skin LED Light Therapy Mask on sale with 10% off, while the Shark Beauty CryoGlow LED Face Mask is now £264.97 down from £299.99.