Medik8Niacinamide Peptides
Product Description
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.
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Rated 5 out of
5
by
Svetlana W. from
Useful
[This review was collected as part of a promotion.] For my sensitive skin with rosacea, this niacinamide serum is a real find 💕 Thanks, Medik8.
Date published: 2026-09-02
Rated 5 out of
5
by
Patrick Z. from
Light serum
[This review was collected as part of a promotion.] Light serum that really helps with my blemishes prone skin and I’m hoping to heal quickly thanks to this serum
Date published: 2026-09-01
Rated 5 out of
5
by
Keiran C. from
Great product for oily skin
I really needed a product that addressed my oily skin, but I didn't want to add another serum on top of my peptides. This is perfect. I'm six weeks in and my complexion is much more mattfiied and my fine lines are even finer. The consistency is very light and absorbs almost instantly. Huge fan. Haven't found any men's skincare product that beats this.
Date published: 2026-08-31
Rated 4 out of
5
by
Shermane O. from
May need help on the correct use
[This review was collected as part of a promotion.] Niacinamide Peptides feels lovely on my skin and absorbs well without feeling sticky. I’m not entirely sure I’m using it correctly or getting the full benefit from it yet, but I like how my skin feels after using it and will definitely continue with it.
Date published: 2026-08-31
Rated 5 out of
5
by
Victoria M. from
A great quality serum with
[This review was collected as part of a promotion.] A great quality serum with a light-weight formula that feels lovely on my skin and is super easy to incorporate into my daily regimen. It has helped reduce excess oil on my combination skin, whilst leaving it looking fresh, smooth and glowing for hours after application.
Date published: 2026-08-27
Rated 5 out of
5
by
Veronika B. from
My favorite clarity serum
[This review was collected as part of a promotion.] It's a lightweight serum with great niacinamide content. I use it around my period days to keep my skin clean and free from breakouts.
Date published: 2026-08-26
Rated 5 out of
5
by
Linda M. from
Calming clarity
[This review was collected as part of a promotion.] Like all of the Medik8 products that I use this really gives results. I have rosacea which can flare up and this is amazing at calming my skin down. It's truly comforting and makes my condition so much easier to deal with. Now I just use a little bit of concealer. . . . . brilliant!
Date published: 2026-08-26
Rated 4 out of
5
by
Sarah K. from
Lovely serum
[This review was collected as part of a promotion.] Lovely and light serum and sinks in well with no stickiness. It's only a small bottle so not sure how long it will last for the money though
Date published: 2026-08-26
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