Mycodex All-in-One has the 3 main aspects of pest control: insecticide, IGR and repellent, all in one easy-to-use shampoo. It quickly kills fleas and ticks, then provides more than 3 weeks control of adult fleas and 3 months control of the flea eggs. Plus, it also repels flies, gnats and mosquitoes. For dogs, cats, puppies and kittens over 12 weeks of age.