COSRX The Niacinamide 15 Serum 20g, 15% Niacinamide: Brightens & refines skin

Cosrx The Niacinamide 15 Serum is a highly concentrated skincare serum containing 15% niacinamide, known for its brightening and skin refining properties. It is specially designed to reduce the appearance of dark spots, control sebum production, and smooth rough skin texture, leaving the skin feeling soft, smooth, and radiant.