Safe and fast-acting.

Bio Spot for Dogs: Active Ingredients: Permethrin: 45% Pyriproxyfen: 2-[1-methyl-2-(4-phenoxyphenoxy) ethoxyl] pyridine (Nylar®)(METHOPRENE): 3% Inert Ingredients: 52%

Bio Spot for Cats: Active Ingredients: Methoprene: 3.6% Etofenprox..40% Other Ingredients: 56.4%

Compare Bio Spot® Spot On® Flea & Tick Control for Dogs to the Leading Veterinary Brands* Flea & Tick Topicals Eight-in-One Cutter Plus Spot On® Farnam Bio Spot® Spot On® Merial Frontline® Plus Merial Frontline® Top Spot® Bayer K9 Advantix® Bayer Advantage® Active Ingredients Permethrin and (S)-Methoprene Permethrin and (S)-Methoprene Fipronil and (S)- Methoprene Fipronil Permethrin and Imidacloprid Imidacloprid Kills & Repels Fleas X X X X X X Kills & Repels Ticks X X X X  X   Kills Flea Eggs & Flea Larvae X X X       Kills & Repels Mosquitoes X X      X   Kills Dog Lice & Ear Mites X ? ? ?  ?                 All registered trademarks are property of their respective owners.

To apply, snip open tube, part your pet's hair and squeeze Bio Spot directly onto skin. As your pet moves around, Bio Spot works its way through the hair and over the surface of the skin to provide total body protection.