About This Effective, Waterproof Flea Treatment for Cats: PetArmor Plus topical flea treatment for cats is a waterproof, flea & tick prevention that kills fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application Trusted Cat Flea Treatment Topical With Vet Quality Formula: Containing fipronil and (S)-methoprene, the same active ingredients as Frontline Plus for Cats; PetArmor Plus for Cats has a powerful formula that starts to kill fleas within 24 hours Break The Flea Cycle: Unlike other cat flea & tick control treatments that may temporarily suppress flea activity, PETARMOR Plus Cat Flea Treatment effectively breaks the flea life cycle; kill flea eggs and larvae to prevent re-infestation Flea and Tick Protection: PetArmor cat flea and tick prevention protects your furry family members from brown dog ticks, American dog ticks, Lone Star ticks, and deer ticks (which may transmit Lyme disease) Easy-to-Use, Long-Lasting: PetArmor Plus flea prevention for cats comes with one (1) waterproof topical application that provide your pet flea protection and control for one (1) months