Sergeant's Gold Flea & Tick Shampoo for Dogs and Puppies kills fleas and ticks for up to 14 days. It also kills flea eggs for 30 days in order to prevent reinfestation. This 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!