The Niacinamide 15 Serum, 0.67 oz.

4.5 (1,742)
$25.00
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Product details

Web ID: 16056907

A highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control.

  • Product Features

    • WHAT IT IS:
    • A highly concentrated serum with 15% niacinamide
    • WHAT IT DOES:
    • Provides total acne care; non-comedogenic tested; doesn't clog pores
    • INGREDIENT HIGHLIGHTS:
    • Niacinamide provides total acne care by controlling sebum production, soothing acne inflammation and diminishing post-acne scars
    • N-Acetylglucosamine (NAG) works in synergy with niacinamide to effectively fade hyperpigmentation
    • Zinc PCA inhibits inflammation and promotes recovery of damaged skin
    • Allantoin promotes collagen synthesis to facilitate skin regeneration
    • SKIN TYPES:
    • Suitable for acne-prone skin
    • HOW TO USE:
    • After cleansing, during the serum phase, apply a few drops to the skin
    • Use fingertips to gently massage and absorb the serum, starting from the center of the face working toward the edges
    • This serum can be used in the morning and/or afternoon; if applied in the morning, be sure to use with SPF of 30 or higher
    • RESULTS:
    • 45.27% improvement of activated sebaceous glands*
    • 48.07% improvement of oil synthesis amount*
    • 42.72% improvement of number of blackheads*
    • 50% improvement of number of whiteheads*
    • 15.50% improvement of hidden melasma and blemishes*
    • 19.47% improvement of pigmentation (visible melasma and blemishes)*
    • 2.59% improvement of triple-complexion skin tone (brightness)*
    • 24.89% improvement of triple-complexion skin tone (redness)*
    • 11.73% improvement of triple-complexion skin tone (yellowness)*
    • *Based on clinical trials with 20 subjects; results in 4 weeks; Dermacosmetic Skin Science Laboratory Co., Ltd.

  • Shipping & Returns

    • This item qualifies for Free Shipping with minimum purchase! exclusions & details
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.

Ratings & Reviews

4.5/5

1,742 star ratings, 1,737 reviews

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62.9% of reviews have 5 stars
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24.6% of reviews have 4 stars
429
8.5% of reviews have 3 stars
148
2.5% of reviews have 2 stars
44
1.4% of reviews have 1 star
25

On average, customers rate the Oil-absorbing/moisturizing of this item as Oil-absorbing.

On average, customers rate the Heavy/light of this item as Neutral.

On average, customers rate the Best for day/best for night of this item as Best for night.

189 customer images

1,737 reviews
Kylie N.
9 days ago
Incentivized review

Love this product and how

Love this product and how my skin feels using COSRX!

Customer review from cosrx

Marjorie S.
9 days ago
Incentivized review

So glad I started using

So glad I started using this product!! Really helps with my many skin problems!

  • Photo from Marjorie S.

Customer review from cosrx

Janet F.
14 days ago
Incentivized review

My second bottle of COSRX

My second bottle of COSRX Niacinamide 15 and I will continue to purchase. I have tried many other Niacinamide Serums and it beats all the others hands down for quality and price. You can see pore reduction quickly and my sun spots have decreased with time. I do not have sensitive skin, I use it in the AM after CORSRX C Serum and my skin tolerates it very easily. Give it a shot

Customer review from cosrx

renee t.
23 days ago
Incentivized review

I noticed a difference in

I noticed a difference in my skin texture once I started using it

Customer review from cosrx

Kimberly N.
26 days ago
Incentivized review

This serum has really helped

This serum has really helped brighten my skin and smooth out the texture! I'm on my second bottle. If I use it twice a day I can feel a little bit of a burning sensation, but it's good if I only apply it once a day.

Customer review from cosrx

Luisana H.
27 days ago
Incentivized review

I have been using it

I have been using it for a little under a week and already started noticing mild improvements in my skin tone and texture.

  • Photo from Luisana H.

Customer review from cosrx

Janet W.
29 days ago
Incentivized review

I love this Niacinamide 15

I love this Niacinamide 15 serum. It is one of the best Niacinamide products I have tried and also very reasonably priced for its effectiveness. It is one of the only serums that I can see noticeable brightness and a little improvement in fine lines the day after I use it. I will continue to use this serum regularly.

Customer review from cosrx

Hayley B.
1 month ago
Incentivized review

love CosRX niacinamide. It does

love CosRX niacinamide. It does a a great job smoothing my pores and adding a nice barrier for my skin

Customer review from cosrx