Let's start with the good stuff: Curicyn Bodyguard Fly, Flea, Tick and Insect Repellent for Dogs is 100% non-toxic to humans and animals, DEET- and Permethrin-free. Yet, it's also superbly effective: in fact, tests by a leading U.S. university showed that our BodyGuard formulation is 3 times as effective as other major brands! What makes it so unique is that, unlike other leading brands that require their liquid product to come into direct contact with pests, BodyGuard works via 'vapor' transmission to olfactory receptors in the pests. This means less product needs to be applied to the animal, and insects of all types are instantly repelled when they come near your animals. Includes 8 oz. container size of flea repellent.