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COSRX The Niacinamide 15 Serum with Acetyl Glucosamine + Zinc PCA #1
COSRX The Niacinamide 15 Serum with Acetyl Glucosamine + Zinc PCA #1

COSRXThe Niacinamide 15 Serum with Acetyl Glucosamine + Zinc PCA

Online only|Item 2607695

4.6 out of 5 stars. 582 reviews
Size:0.67 oz


Conscious Beauty at Ulta Beauty™

  • Clean Ingredients

COSRX's The Niacinamide 15 Serum is a highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control.



  • 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

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 towards the edges. Highly concentrated serums should only be used in the evening? NO! This serum can be used in the morning and/or night. If applied in the morning, be sure to use with a SPF of 30 or higher.<


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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