The Vets + Best Advanced Strength Flea + Tick Shampoo has 2 times flea killing effectiveness, it kills fleas, flea larvae, flea eggs and ticks by contact. Made with plant-based ingredients such as rosemary and peppermint oil to comfort and protect your pet. Cleans and deodorizes dogs coat and features a light peppermint scent. For dogs and puppies 12 weeks or older. 12 oz.