Skip to main content

What it is: A total acne care serum formulated with 15% niacinamide.Who it's for: Ideal for all skin types.What it does: The highly concentrated serum combines maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control. It is noncomedogenic and won't clog pores.Research results:In a clinical trial on 20 subjects, over 4 weeks:- 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)How to use: After cleansing, during the serum phase, apply a few drops of the Niacinamide serum to the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face, working towards the edges. Use the serum in the morning, evening or afternoon. If applied during the morning/day, be sure to use sunscreen with an SPF of 30 or higher. 0.67 oz.

Cosrx The Niacinamide 15 Serum 20ml-no Color
Cosrx The Niacinamide 15 Serum 20ml-no Color In N,a
Cosrx The Niacinamide 15 Serum 20ml-no Color
Cosrx The Niacinamide 15 Serum 20ml-no Color In No Color
Cosrx The Niacinamide 15 Serum 20ml-no Color In No Color
Cosrx The Niacinamide 15 Serum 20ml-no Color In No ColorCosrx The Niacinamide 15 Serum 20ml-no Color In BlackCosrx The Niacinamide 15 Serum 20ml-no Color In BlackCosrx The Niacinamide 15 Serum 20ml-no ColorCosrx The Niacinamide 15 Serum 20ml-no ColorCosrx The Niacinamide 15 Serum 20ml-no Color
Visit REVOLVE for more details
1 / 10
First seen in Aug 2025

COSRX
The Niacinamide 15 Serum 20ml-no Color In Black

$25 to $58
set alert
Get extra savings Join Now

Shop Across 800+ Stores

Cosrx The Niacinamide 15 Serum 20ml-no Color In N,a
REVOLVE
$25
(1 Promotion)
Join now for store availability
REVOLVE
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color
macy's
$25
Join now for store availability
macy's
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color In No Color
Nordstrom
$25
(1 Promotion)
Join now to view all available sizes
Nordstrom
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color In Black
ASOS
$35
(1 Promotion)
Join now for store availability
ASOS
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color
Ulta Beauty
$25
(2 Promotions)
Join now for store availability
Ulta Beauty
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color
Lookfantastic
$39 $28 (28% OFF)
Join now to view all available sizes
Lookfantastic
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color
Lookfantastic
$82 $58 (29% OFF)
Join now for store availability
Lookfantastic
We will watch available offers for you
Cosrx The Niacinamide 15 Serum 20ml-no Color
Dermstore
$25
Join now to see more detail
Dermstore
We will watch available offers for you
Product Details
COSRX THE NIACINAMIDE 15 SERUM

COSRX THE NIACINAMIDE 15 SERUM

COSRX The Niacinamide 15 Serum in N/A - Beauty: NA. Size all. Highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control.. Suitable for all skin types Targets blackheads, whiteheads, pigmentation, and complexion. Cruelty-free. 20ml / .67 fl oz. 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 towards the edges.. CORX-WU75. COS317. COSRX - pronounced kos-are-ex - is committed to making ingredient-oriented, high-performance skincare. Using a minimal number of highly effective natural extracts in concentrated doses, COSRX products deliver visible results by treating skin with only the essentials it needs and nothing it doesn't.

Product Detail Provided by REVOLVE - Purchase Now
COSRX THE NIACINAMIDE 15 SERUM, 0.67 OZ.

COSRX THE NIACINAMIDE 15 SERUM, 0.67 OZ.

A highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control. Beauty Skin Care - Skin Care - Skin Care Categories (new)

Product Detail Provided by macy's - Purchase Now
COSRX COSRX THE NIACINAMIDE 15 SERUM

COSRX THE NIACINAMIDE 15 SERUM

What it is: A total acne care serum formulated with 15% niacinamide.Who it's for: Ideal for all skin types.What it does: The highly concentrated serum combines maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control. It is noncomedogenic and won't clog pores.Research results:In a clinical trial on 20 subjects, over 4 weeks:- 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)How to use: After cleansing, during the serum phase, apply a few drops of the Niacinamide serum to the skin. Use fingertips to gently massage and absorb the serum, starting from the center of the face, working towards the edges. Use the serum in the morning, evening or afternoon. If applied during the morning/day, be sure to use sunscreen with an SPF of 30 or higher. 0.67 oz.

Product Detail Provided by Nordstrom - Purchase Now
COSRX THE NIACINAMIDE 15 SERUM 20ML-NO COLOUR

COSRX THE NIACINAMIDE 15 SERUM 20ML-NO COLOUR

Face + Body by COSRX Skincare just got serious Highly concentrated serum Designed to control excess sebum and minimise the appearance of clogged pores Suitable for oily and combination skin types Niacinamide aims to minimise blemishes and pores by regulating sebum production for an even complexion Product is non-returnable for hygiene reasons

Product Detail Provided by ASOS - Purchase Now
COSRX THE NIACINAMIDE 15 SERUM WITH ACETYL GLUCOSAMINE + ZINC PCA

COSRX THE NIACINAMIDE 15 SERUM WITH ACETYL GLUCOSAMINE + ZINC PCA

THE NIACINAMIDE 15 SERUM 0.7FLOZ. Benefits: 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. : :

Product Detail Provided by Ulta Beauty - Purchase Now
COSRX THE NIACINAMIDE 15 SERUM 20ML

COSRX THE NIACINAMIDE 15 SERUM 20ML

Featuring a powerful percentage of niacinamide, the COSRX The Niacinamide 15 Serum helps to visibly brighten, tone, and diminish the look of pores. Ideal for blemish-prone skin types, the serum is infused with 15% niacinamide, a high concentration to provide optimal efficacy of the active. The multi-benefit formula is fortified with zinc PCA to minimise the appearance of excess oils and sebum, encouraging a more mattified, yet radiant result. Acetylglucosamine helps to gently exfoliate the skin to reveal a refreshed complexion, while allantoin keeps the skin quenched with moisture.

Product Detail Provided by Lookfantastic - Purchase Now
COSRX THE BRIGHTENING SKIN DUO

COSRX THE BRIGHTENING SKIN DUO

The COSRX The Brightening Skin Duo combines two targeted formulas designed to visibly refine, hydrate and enhance the look of skin’s radiance. Together, they layer lightweight textures and concentrated actives for a visibly smoother, more even finish. Set Contents: COSRX Advanced Snail 92 All in One Cream 100ml A fast-absorbing jelly cream enriched with 92% snail secretion filtrate to help hydrate, soften and improve the appearance of skin texture. COSRX The Niacinamide 15 Serum 20ml A concentrated serum with 15% niacinamide, zinc PCA and acetylglucosamine to help refine the look of pores and uneven tone while supporting skin’s natural clarity.

Product Detail Provided by Lookfantastic - Purchase Now
Similar Designers

ModeSens Before You Buy

Don’t miss out! Compare prices across 800+ vetted stores—all in one place. Plus, earn rewards every time you shop.
Join over 2M members today!