Cosrx niacinamide 15% Serum .

COSRX The Niacinamide 15 Serum is a high-strength brightening and blemish-care serum formulated with 15% Niacinamide to help improve skin clarity, balance excess oil production, and refine the appearance of pores. This lightweight yet powerful serum targets multiple skin concerns, including post-acne marks, uneven skin tone, excess sebum, and dullness. Enriched with skin-conditioning ingredients, it absorbs quickly into the skin to promote a smoother, brighter, and healthier-looking complexion. Ideal for those looking to achieve clearer and more balanced skin as part of their daily skincare routine.