Keep your cat flea-free with Advantage, a fast-acting, easy-to-apply spot-on flea treatment for cats over 4 kg. Because Advantage kills fleas on contact — no bite required — reinfesting fleas stop biting within 3–5 minutes and are killed within 1 hour, with a full month of protection from each application. Fast-acting: fleas stop biting within 3–5 minutes and are killed within 1 hour. Long-lasting protection: a full month of flea control from a single dose. Safe for all cats: suitable for kittens from birth, and for pregnant and lactating cats. Easy application: a convenient spot-on treatment that is simple to apply. Keep your cat comfortable and flea-free with Advantage. See the Feeding guide tab for application details and the Ingredients & safety tab for the active constituent and safety directions.