Sterile. Advanced First Aid. Cools and soothes on contact. Moist wound care works. Helps prevent scarring. Cools burns, scrapes and bites. Won't stick to the wound. 2nd Skin, Moist Burn Pads are made from pure sterile water. These pads provide a moist comfortable barrier to help keep the burn clean and to help protect the burn. 2nd Skin Moist Burn Pads will not stick to the wound. 2nd Skin Moist Burn Pads are made of at least 80% sterile water and 4% polyethylene oxide, an inert material. Made in USA.