Fur Guard PRO Tick & Flea Spray contains IR 3535, which is a scientifically proven Tick & Flea repellent.It protects your pet from Ticks, Fleas, Mosquitoes and other bugs. An Amino Acid & Essential Oil- based Ticks, Mosquitoes and House Flies. repellent to defend against Fleas, Ingredients : DM Water, Propylene Glycol, Butylacetylaminopropionate (IR 3535) , Citric acid, PEG-40 Hydrogenated Oil, Sodium Citrate , Citronella Oil & Benzalkonium Chloride. Contains No Deet, Synthetic Pesticides or Pyrthrins For Dogs & Cats of all ages. Safe for Humans too !! Direction for Use : Spray uniformly over entire body of the pet & massage into the skin gently, allowing good contact of the spray with the skin.Use without dilution.Avoid snout, eyes & mouth area. Allow to dry without a towel or dryer. Gently brush the coat.