[Niacinamide 20% + Zinc PCA 1%] A pore care serum with highly concentrated active ingredients that regulates excess sebum production to reduce the appearance of oiliness, blackheads and stretched pores while tightening pores. WHO TO USE: After toning, gently apply a few drops to face, focusing on enlarged pores. Always do a patch test before first use.Start slowly. At first, apply 2~3 days a week, gradually increasing frequency as your skin adjust. Ingredients: Water, Niacinamide, Butylene Glycol, 1,2-Hexanediol, Zinc PCA, Salix Alba (Willow) Bark Water, Sodium Hyaluronate, Allantoin, Glycerin, Ethyl Hexanediol, Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate