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Niacinamide Peptides

Medik8 Niacinamide Peptides

%0 4.59 | 364 reviews
Box

£49.00

Free UK delivery

30ml
In stock

If you like we can let you know when we have some more.

10% Niacinamide Serum with Peptides & NAG

Clinically proven to reduce visible blemishes by 35%, Niacinamide Peptides is your go-to for luminous, refined and healthy-looking skin.<1> Powered by 10% niacinamide, this multi-active formula is clinically proven to dramatically reduce the look of pores and blemishes, while simultaneously soothing your skin barrier. The result? Rapid improvement in just 7 days, and a visibly smoother, more balanced appearance over time.<1>

KEY BENEFITS

Effective Blemish Reduction
Visibly reduces blemishes while balancing oil production to help prevent future breakouts.

Glass-like Skin
Proven to deliver an instant, visible glass-like glow with a lightweight, non-greasy texture.<2>

Redness Recovery
Proven to reduce visible redness in 7 days while remaining gentle for everyday use.<2>

Pore Refining
Gently balances congestion-prone skin, targeting the look of pores and uneven skin texture in 7days.1>

Skin Barrier Support
Formulated with enhanced skin barrier support that's clinically proven to improve skin barrier health by 34%.<1>

KEY INGREDIENTS

Niacinamide (10%)
Also known as vitamin B3, its anti-inflammatory properties help to visibly calm blemish-induced redness while hydrating and supporting your skin's natural barrier.

Crystalide* Peptide
A powerful peptide that works to enhance skin cell renewal for a more uniform and luminous-looking skin surface.

*Crystalide™ is a trademark of Sederma Inc.

N-Acetyl Glucosamine (NAG) (pronounced 'En-ASS-a-till Gloo-coh-sa-meen')
Gently exfoliates while boosting niacinamide's power, helping to promote a visibly even complexion.

Zinc PCA
A natural mineral that works to control excess sebum, helping to prevent visible blemishes from forming.

Hyaluronic Acid
With a unique ability to hold over 1,000x its weight in water, it draws moisture into the skin's upper layers, leaving it visibly plump, hydrated and supple.

Directions

After cleansing in the morning and/or evening, apply evenly across the face, neck & décolletage.

Test results

7 days to visibly clearer and smoother skin<3>
35% reduction in visible blemishes<1>
26% reduction in visible pore size in 4 weeks<1>
100% showed a healthier skin barrier within 7 days<1>
94% agree it's gentle on the skin<2>
100% agree it layers well in their skincare routine<2>


<1> Proven via an independent clinical study conducted over 4 weeks on 30 participants.
<2> Proven via an independent consumer study conducted over 4 weeks on 56 participants.
<3> Proven via independent clinical and consumer studies over 4 weeks on 83 participants.

Ingredients

Aqua (Water), Niacinamide, Caprylic/Capric Triglyceride, Acetyl Glucosamine, Glyceryl Stearate Citrate, Glycerin, Dimethicone, Zinc PCA, Palmitoyl Tetrapeptide-10, Sodium Hyaluronate, Phenoxyethanol, Polyglyceryl-3 Stearate, Hydroxyacetophenone, Crambe Abyssinica Seed Oil, Hydrogenated Lecithin, Behenyl Alcohol, Cetearyl Alcohol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Disodium EDTA, Xanthan Gum, Cetyl Palmitate, Ethylhexylglycerin, Carnosine, Sorbitan Stearate, Polysorbate 80, Polysorbate 60, Sorbitan Isostearate, Sodium Benzoate, Citric Acid, Tocopherol.

This list of ingredients may be subject to change, please consult the packaging of the product purchased.

+Offer

FREE Press & Clear 150ml when you spend £100 on Medik8.*

Reveal visibly clearer skin in just 7 days - without irritation* with Medik8’s Press & Clear. 

 

*One free gift per order. Valid until the 10th of May or whilst stock lasts. Your free gift will automatically add to the shopping bag page. Total at order summary must be £100 or more worth of Medik8 products, after any Promotion Code, Brands You Love discount and before delivery charges are applied. Cannot be used in conjunction with any other Promotion and this offer is not applicable to previously made or pending purchases

Shop this offer

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Rated 5 out of 5 by from Beautiful on the Skin. Soaks [This review was collected as part of a promotion.] Beautiful on the Skin. Soaks in Lovely, not sticky.
Date published: 2026-04-23
Rated 5 out of 5 by from Medik8 is a game changer! [This review was collected as part of a promotion.] Niacinamide Peptides is an absolute dream to use, the consistency is slightly runny but glides over your face with ease. It fits into my regime perfectly and I have found using as part of my morning regime works best for me. I fell my pores look less and have reduced significantly. I have been using Medik8 products now for just over 2 months and have to say it is the BEST skincare regime I have ever used. For most of my adult life I have suffered with acne and now in my late 40's hormonal acne has decided to plague me! Medik8 has cleared my complexion and made my life that bit easier to deal with! Yes, I still have imperfections and little breakouts but nothing like pre Medik8. It is keeping it under control and manageable. Can not recommend the brand enough and the addition of Niacinamide Peptides to the range is yet another hero product!
Date published: 2026-04-22
Rated 3 out of 5 by from Too early to see results?? [This review was collected as part of a promotion.] Like all products from Medik8, this has a lovely texture, absorbs easily into the skin and sits well with other products. Unlike other products I haven’t really noticed any visible difference in my skin after a couple of weeks of daily use.
Date published: 2026-04-20
Rated 5 out of 5 by from Healthier and hydrated skin [This review was collected as part of a promotion.] “I’ve been using this serum for about a month now, and I can already see a difference—my skin looks more hydrated, smoother, and healthier
Date published: 2026-04-18
Rated 5 out of 5 by from Love it [This review was collected as part of a promotion.] I suffer with blocked pores and this has worked a treat.
Date published: 2026-04-17
Rated 5 out of 5 by from Brilliant purchase [This review was collected as part of a promotion.] I have uneven / red patchy skin with open pores & this has been the only thing ever that's cleared my skin . I love it ! I feel confident and have had compliments on how well my skin looks
Date published: 2026-04-16
Rated 5 out of 5 by from Niacinamide [This review was collected as part of a promotion.] 1st time using but can see a difference in skin already
Date published: 2026-04-16
Rated 5 out of 5 by from Very Hydrating ! [This review was collected as part of a promotion.] I have been using this on top of my thermal mist to lock in the moisture and it leaves the skin with that amazing hydrated glow from within.
Date published: 2026-04-16
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