COSRX The Niacinamide 15 Serum, 1.01 fl oz, 2-pack

COSRX The Niacinamide 15 Serum delivers a potent 15% niacinamide concentration designed to strengthen your skin barrier and minimize pore appearance. This lightweight serum absorbs quickly without leaving residue, making it ideal for layering within your routine. The 2-pack format provides extended supply for consistent results. Niacinamide works to regulate sebum production, reduce redness, and support overall skin resilience. Perfect for those seeking a straightforward, effective addition to their skincare regimen.