PetArmor Fastact Plus Flea & Tick Spray for Dogs & Cats helps kill and control fleas, ticks and lice directly on your pet as well as in his surroundings, including his pet bed, pet carrier and around the home. Fastact Flea & Tick Spray not only kills and repels adult fleas, ticks and lice on contact, but also kills flea eggs and larvae, preventing another flea infestation for up to 30 days. This spray can be used for puppies over 6 months and kittens over 7 months of age.