This concentrated, rich lathering shampoo kills adult fleas and ticks on contact, and contains Precor, an Insect Growth Regulator which stops flea eggs from hatching for 28 days, effectively breaking the flea life cycle. Also contains oatmeal, coconut extract, lanolin and aloe, which soothe and condition sensitive puppy skin and help prevent irritation. Leaves coat soft, shiny and manageable, with a baby-fresh scent. Can be used full strength or diluted 2:1. Do not use on puppies less than 12 weeks old. Please read and follow complete label directions. Active ingredients: (S)Methprene, Pyrethrins, Piperonyl Butoxide.