Kobayashi BIF Night Sheet is a medicated acne sheet that contains sterilizing properties, which all you need to do is stick on to the acne area before going to sleep!!!Beucase it is deisgned in a sheet type, the ingredients can penetrate deep down into your skin, to disinfects acnegenic bacteria and removes the root of acne.The contained Sterilization ingredients will keep your skin hygiene andfight against inflammation.You will notice differences when you wake up next day!Night Use Only16 sheets