18-ounce bottle of Sergeants "Rid Flea" Flea and Tick shampoo for dogs and puppies. This was the brand I used for Buddy when he was a puppy. Presumably it's a little milder than some of the other flea and tick shampoos that can't be used for puppies. It claims to remain active for ten days. How well it actually repels fleas, I couldn't say. I wouldn't depend on it alone, however when used in combination with other flea and tick products for pets, it's a good addition to the arsenal.