Provides fast-acting, long-lasting flea and tick protection Trusted by Pet Owners for 20 years1Reference: 1. Data on file at Boehringer Ingelheim. Kills adult fleas, flea eggs, flea larvae, chewing lice, & ticks Waterproof Easy to apply once a month for lasting protection For cats 8 weeks or older weighing 1.5 pounds or more For best results, apply every month