Sterilized saline or distilled water. Sculpting is a minimally invasive plastic surgery technique that uses sterile water, usually sterilized saline or distilled water. The water undergoes high-temperature and high-pressure sterilization or filtration sterilization before use to ensure its sterility. The main function of sterile water is to clean and moisturize the skin during cosmetic surgery to reduce the risk of infection. Using sterile water during cosmetic surgery reduces the chance of bacteria and other microorganisms entering the skin, thereby reducing the possibility of infection.