Ultra Guard One Spot Flea Treatment for Cats - a monthly treatment that kills and prevents flea eggs and larvae for up to 30 days. It also stops the flea life cycle and prevents re-infestation for 30 days. Do not use on kittens less than 12 weeks old. Package contains 3 monthly treatments.
(S) - Methoprene - 2.9%
Apply each treatment to the back of the neck and base of the tail. After application, through its natural movement, your cat's skin and hair oils carry Hartz Ultra Guard Flea Treatment over the cat's body for protection against fleas and ticks.