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Medik8Niacinamide Peptides
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.
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.
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 Clarifying Foam™ 150ml when you spend £80 on Medik8.*
Discover a visibly decongested, clearer and smoother-looking complexion that is less prone to breakouts with Medik8’s Clarifying Foam.
*One free gift per order. Valid until the 26th of January or whilst stock lasts. Your free gift will automatically add to the shopping bag page. Total at order summary must be £80 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. Excludes Gift Voucher, Sephora Favourites Advent Calendar and Fragrance Gift Box purchases. This offer is available online at Sephora.co.uk to UK Mainland customers only.
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Rated 5 out of
5
by
Anonymous from
lovely addition to my regime
Lovely formula - you don’t need to use a huge amount to make a difference
Date published: 2026-01-15
Rated 5 out of
5
by
Aygun M. from
Nice smooth texture
Received it as a sample, which lasted me 3 days, using it twice a day, so can’t really judge on the results . However, the texture was smooth, the serum didn’t have any smell, which is a bonus for some people (I personally prefer some smell). Gave it 4 stars only because didn’t try it for long enough to understand if it worked.
Date published: 2026-01-15
Rated 5 out of
5
by
Malgorzata P. from
I really enjoyed trying the
I really enjoyed trying the Niacinamide Peptides (Deluxe Sample). The texture is lightweight and absorbs quickly without feeling sticky or heavy on the skin. It layers well under moisturiser and makeup, which is a big plus.
After a few uses, my skin felt more balanced and hydrated, with a smoother overall appearance. The niacinamide helped calm redness, while the peptides made my skin feel firmer and healthier. I didn’t experience any irritation, even with sensitive skin.
The deluxe sample size is perfect for testing the product before committing to a full size. Overall, a great serum that delivers visible results and feels gentle yet effective. I would definitely consider purchasing the full-size version.
Date published: 2026-01-15
Rated 5 out of
5
by
Inna P. from
Great
I really like it
The skin looks smoother and more vibrant
Date published: 2026-01-15
Rated 5 out of
5
by
Tracey P. from
Was a nice texture when
Was a nice texture when applying. Would need to use for longer to give a longer review
Date published: 2026-01-15
Rated 2 out of
5
by
Helen G. from
Not for me. . .
This product did not react to my skin well. I broke out after a couple of uses and therefore discontinued use. I'm sure this is just a individual reaction as I tolerated the Clarity Peptides product very well.
Date published: 2026-01-15
Rated 5 out of
5
by
Sevda G. from
Just great
I have been using Niacinamide Peptide deluxe sample for 3 weeks now, and I’m very pleased with how well it absorbs into my skin. The silky texture feels luxurious and lightweight. I was already using Clarity Peptides, but this new serum is definitely a step up.
Date published: 2026-01-15
Rated 5 out of
5
by
Shaun G. from
Really impressed
I've been looking for a new niacinamide serum to help tackle my enlarged pores and skin texture. The serum soaked into my skin quickly and left no residue. As it was only a sample I wasn't able to use it long enough to see results but I have bought a full size serum so I can track the results. Well done again Medik8!!!
Date published: 2026-01-15
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