For use with_Cats, rabbits, ferrets Acts on_Adult fleas, flea larvae Protects against_Flea Allergy Dermatitis (FAD) Environmental parasiticidal activity_Yes. Flea larvae are killed in the pets' surroundings Water-resistant_Yes, when used as directed Safe forK ittens from birth*, cats, rabbits and ferrets Application_Topical (spot-on) Dosing_Once a month Advantage Flea Treatment for Cats Advantage is the fastest way to a flea-free home. An easy-to-use spot-on, Advantage is applied monthly. Its super ingredient stops fleas biting within 3 to 5 minutes and kills both adult fleas and larvae within 20 minutes. Since Advantage works on contact so fleas don’t need to bite, cats suffer fewer painful flea bites, reducing outbreaks of Flea Allergy Dermatitis. Advantage is the only flea product you need as it breaks the flea lifecycle. Unlike other treatments, Advantage kills fleas in your cat’s surroundings – your home. It even provides protection for your cat when it comes into contact with other pets that have fleas. Advantage is safe for kittens of any age, provides month long protection and is water-resistant so it won’t wash off. It’s the quickest way to the happiness of a flea-free home.