The Niacinamide 15 Serum, 0.67 oz.

4.5 (1,748)
$25.00
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6-month financing with Macy's Card.

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
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    • 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

1,748 star ratings, 1,743 reviews

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63.0% of reviews have 5 stars
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24.5% 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.

190 customer images

1,743 reviews
Jessica B.
6 days ago
Incentivized review

Worked super well on the

Worked super well on the pores in my cheeks! No skin irritation for me.

Customer review from cosrx

Meganne D.
7 days ago
Incentivized review

Love it! Have only used

Love it! Have only used it for a few weeks & already noticed a difference. Very nice consistency and feel on the skin.

  • Photo from Meganne D.

Customer review from cosrx

Hamid Z.
9 days ago
Incentivized review

Looks beautiful. Great texture to

Looks beautiful. Great texture to the solution. Work with different skin complexions. .

Customer review from cosrx

Masaki H.
10 days ago
Incentivized review

Love how it feels on

Love how it feels on my skin and has helped the texture. The great thing about COSRX is that nothing has perfume and nothing irritates my skin. Great under make up

Customer review from cosrx

Shamim N.
11 days ago
Incentivized review

I’m really glad that I

I’m really glad that I got to try this product. Working miracles for my skin. Thanks

Customer review from cosrx

Tau’Mee G.
13 days ago
Incentivized review

Works great leaves my skin

Works great leaves my skin looking and feeling soft. It has helped a lot with my acne.

Customer review from cosrx

Kylie N.
2 months ago
Incentivized review

Love this product and how

Love this product and how my skin feels using COSRX!

Customer review from cosrx

Marjorie S.
2 months 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