COSRX Niacinamide 15 Serum | Acne & Pore Refining Solution

The Niacinamide 15 Serum is a high-concentration formula designed for total acne care. By combining a maximum allowable concentration of Niacinamide with synergistic ingredients, this serum targets every stage of breakouts, from initial sebum control to the recovery of post-inflammatory hyperpigmentation.