The Niacinamide 15 Serum with Acetyl Glucosamine + Zinc PCA from COSRX 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.<