USE: SENTRY PRO Flea & Tick Shampoo for Dogs and Puppies kills fleas and ticks for up to 14 days. It also kills flea eggs for 30 days to help prevent reinfestation. | IDEAL FOR DOGS: This rich, conditioning, non-staining formula contains three flea and tick killing active ingredient including an insect growth regulator (IGR) that disturbs fleas trying to lay eggs and eggs from hatching for 30 days | HOW IT WORKS: This flea and tick shampoo cleans, deodorizes and conditions your dog's coat while protecting them from nasty pests. Best of all, they'll smell great afterward, because of the green tea and ginger scent. It's even safe to use on puppies 12 weeks of age and older! | FLEAS: Fleas are insects that can start your pet scratching with one bite. They have exceptional jumping skills, leaping vertically up to seven inches to hop on a host to feed and lay their eggs — up to 5,000 flea eggs in a female’s lifetime. | TICKS: Ticks are parasites that belong to the arachnid family (like spiders and mites) and live in wooded or grassy areas where they attach themselves to pets walking by. Female ticks find hosts to feed, mate and lay eggs upon, while the males generally occupy hosts for mating purposes.