COSRX Niacinamide 15% Face Serum with Zinc, Minimize Enlarged Pores & Sebum, Blemish & Discoloration Treatment, Dark Spots, Anti-aging, 0.67 fl.oz/20 ml, Not Tested on Animals, Korean Skincare Important information Safety Information : Cautions: We formulated this product with high concentrated formula. To ensure this is the right product for you, we always recommend a patch test & note skin's response over the next 24 hour prior to use it. Ingredients : Water, Pentylene Glycol, Niacinamide, Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Hydrolyzed Sclerotium Gum, Water, Pullulan, Allantoin, Ethylhexylglycerin, Tocopherol, Sodium Phytate