COSRX The Niacinamide 15 Serum - 20mlStruggling with enlarged pores, redness, and uneven skin tone? The COSRX The Niacinamide 15 Serum (20ml) is your new best friend! This lightweight, fragrance free serum is packed with 15% Niacinamide, a superstar ingredient that tackles a variety of concerns for smoother, more balanced skin. Here's how it works: Minimizes Pores: Niacinamide helps regulate sebum production, keeping your pores less congested and your skin looking smoother. Calms the