Every cat deserves fast, reliable flea protection, and Advantage II from Boehringer Ingelheim for cats delivers powerful, long-lasting defense against biting fleas. This easy-to-apply topical flea treatment kills adult fleas, flea larvae, and flea eggs on contact to help break the flea life cycle before infestations spread. Designed for cats and kittens over 8 weeks old, Advantage II starts working quickly and eliminates most fleas within 12 hours while continuing to protect against new infestations. The water-resistant formula works at the skin and hair follicle level, so it stays effective through baths, rain, and everyday activity. Simply apply the treatment to the back of your cat’s neck for month-long flea control without messy pills or sprays. Ideal for indoor and outdoor cats, Advantage II helps reduce itching, irritation, and flea-related skin discomfort while supporting your pet’s comfort year-round.