The Cosrx The Niacinamide 15 Serum is a potent 20ml treatment designed to brighten, soothe, and refine skin texture. With 15% niacinamide, it targets uneven tone, excess sebum, and enlarged pores while strengthening the skin barrier. Ideal for acne-prone or oily skin, this lightweight serum absorbs quickly without stickiness. The formula also includes panthenol and allantoin to calm irritation and reduce redness. Regular use helps fade post-acne marks and minimizes shine for a balanced complexion. Free from parabens, sulfates, and artificial fragrances, it’s gentle enough for sensitive skin. A must-try for anyone seeking a clearer, more even-toned complexion with minimal irritation.