Keeps bloodsuckers away from your pet! Sting-free protects against mosquitoes (including black flies), horseflies, ticks and grass mites for up to 8 hours. It also cares for and protects your pet's skin. Summer eczema is prevented, the "bite" of the black fly is considered to be the trigger of summer eczema. Also let the pleasant scent convince you! Note: Contains harmless mosquito repellent (IR3535).