Take total control over your complexion with COSRX The Niacinamide 15 Serum. This high-strength, total care serum is formulated with a potent 15% concentration of Niacinamide to target the root causes of acne, oiliness, and uneven skin tone. Whether you are dealing with persistent breakouts, enlarged pores, or stubborn post-acne dark spots, this serum acts as a multi-corrective treatment. It balances sebum production and smooths skin texture, leaving you with a clear, matte, and healthy-looking glow.