Thank you for viewing! This serum is specialized for improving blemishes and contains tranexamic acid and niacinamide. - Ingredients: Tranexamic Acid 3%, Niacinamide 5%, NAG 2% - Purpose: Serum to help improve blemishes - Brand: COSRX - Product Name: The Alpha-Arbutin 2 Discoloration Care Used about 3 times! I think there's almost all of it left. Expiration date: July 2027