This shampoo will get rid of fleas, ticks and lice. For use on Dogs, Cats, Puppies and Kittens. DE FLEA works through a different mode of action than pyrenthrins, to control fleas, ticks and lice. It can be used during animal worming, and on very young and nursing animals. Contains Dioctyl Sodium, Sulfosuccinate, Undecylenic Acid.