I am selling this item because I did not use it after purchasing it. The following is quoted from the official website: "NuBra Soap," a special detergent developed for washing NuBras. It removes sebum and dead skin cells, which are difficult to remove with regular soap, and prevents the adhesive strength from deteriorating. It does not contain "moisturizers" or "oils" that damage the adhesive strength of NuBras, so it is a recommended detergent for washing NuBras that you can use with confidence. Please purchase it together with your NuBra. It comes in a foaming bottle, so you can easily wash it by simply pressing one pump onto the adhesive surface of the NuBra. It contains 100ml and can be used for approximately 50 to 100 washes (depending on the amount used per wash). *To maintain the adhesive strength of the NuBra, do not use a washing machine and always wash by hand. #NuBra