Waterjel Hydrogen Peroxide Waterjel spray irrigates and cleanses wounds. Active ingredient Hydrogen Peroxide Topical Solution USP 3-percent first aid antiseptic treatment for minor cuts and scrapes. Economical 2 oz. size fits in most first aid kits or medical cabinets. Delivers hundreds of quick and effective applications without cross-contamination. Non-aerosol delivery system fits easily in the palm of your hand.