Advantage Flea Control for Cats 1-9 lbs 2 Month SupplyAdvantage Flea Control is a fast acting, monthly treatment that kills up to 100% of fleas and larvae within 12 hours and eliminates re infesting fleas in just 2 hours. It breaks the flea life cycle by killing fleas before they can lay eggs, protecting for up to 6 weeks. Easy to apply and water resistant, it continues working even after bathing, swimming, or rain. Suitable for dogs over 7 weeks olduse only the correct formula for your pet. Features: