6 doses--Formulated to kill fleas in 6 hours to give your cat the fast relief she needs. Designed to work for a full month to kill fleas, flea eggs, flea larvae, ticks and chewing lice. Comes with a patented applicator that’s made to reach your cat’s skin for easy administration. This solution is non-greasy and quick to dry for less mess. Specifically made for cats and kittens over 1.5 pounds and at least 8 weeks old.