Adams Flea & Tick Cleansing Shampoo kills fleas, flea eggs, ticks and lice on dogs, cats, puppies and kittens. Contains pyrethrins, piperonyl butoxide and Nylar (pyriproxyfen). Insect growth regulator Nylar kills flea eggs for 30 days. Adams Flea & Tick Cleansing Shampoo cleans and deodorizes.