Brand: COSRXFeatures: Redness Relieving Serum: Refine Pores, Smoothen Skin, Relieve Redness. The Niacinamide and Zinc PCA instantly improves skin texture and radiance by reducing excess oil and minimizing pore sizes.Key Benefits: Based on real results from consumers self assessments, the Niacinamide 15 Serum minimizes pore size, improves skin texture, and helps fade dark spots.Dermatological Ingredients: 15% Niacinamide helps minimize enlarged pores and refine uneven skintone. Zinc PCA prevents potential breakouts from occurring.How to Use: Sh