Bactine Original First Aid Liquid is an antiseptic that provides maximum strength pain relief and infection protection. It contains benzalkonium chloride which acts as an antiseptic to help prevent infection in minor cuts, scrapes, and burns. This topical analgesic works to temporarily relieve pain and itch associated with minor cuts, scrapes, insect bites, and burns. Bactine liquid comes in a 4 fluid ounce bottle with a flip-top cap for easy one-hand use. It can be used by adults and children over 2 years old. The active ingredients are benzalkonium chloride 0.13% and lidocaine hydrochloride 0.5%.