Frontline Plus for Cats and Kittens (1.5 pounds and over) Flea and Tick Treatment, 6 Doses WATERPROOF FLEA AND TICK TREATMENT FOR CATS AND KITTENS: provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your cat. This product is approved for use on cats and kittens 1.5 lbs and over. BREAK THE FLEA LIFE CYCLE: Frontline kills adult fleas plus flea eggs and larvae to stop existing infestations and prevent establishment of new infestations. KILLS FLEAS AND TICKS: kills fleas, flea eggs, lice, and ticks This flea and tick treatment kills ticks, including those that may transmit Lyme disease TRUSTED FLEA AND TICK PROTECTION FOR CATS: Frontline Plus for Cats has been trusted by veterinarians for nearly 20 years. Made with 2 tough killing ingredients, fipronil and (S)-methoprene  one to kill adult fleas and ticks and the second to kill flea eggs and larvae  this fast-acting, long-lasting protection provides flea and tick control for cats and kittens 8 weeks and older LASTING FLEA AND TICK PROTECTION: Frontline's long-lasting formula is stored in the oil glands of the cat's skin to give non-stop flea and tick protection for a full 30 days Frontline flea and tick treatment for cats works non-stop for a full 30 days. A 6-dose supply lasts for 6 months