This is a serum containing 16% azelaic acid, which has a calming effect on the skin. I used it once. I'm selling it because it didn't suit my skin. I purchased it this summer and opened it on October 15th. - Brand: medicube - Product Name: Azelac Acid 16 BB Calming Serum - Ingredients: 16% Azelaic Acid - Volume: 30ml - Expiration Date: August 10, 2027 If you want the box, it will be an additional 200 yen. Please comment before purchasing if you would like to include the box. Thank you for looking. medicube Azelac Acid 16 BB Calming Serum