Cosrx – The Niacinamide 15 Serum [ 20ml ]


Total acne care with 15% niacinamide

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

*Non-comedogenic tested -doesn’t clog the pores.

SKU: Cosrx Niacinamide Categories: , , , ,


• 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

Clinical Results in 4 weeks

Suitable for acne prone skin use (Non-comedogenic)

– 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 of 20 subjects.
*Dermacosmetic Skin Science Laboratory Co. Ltd.


Water, Pentylene Glycol, Niacinamide(15%), Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol


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