Martin's Flee Insecticide aerosol spray for Dogs, Cats, Puppies & Kittens (8 weeks or older). Fipronil "Same active ingredient as Frontline® Spray.Fast-acting, long lasting, waterproof treatment for control of fleas and ticks. Quiet applicator can be sprayed from any angle, even upside down. One treatment last 4 weeks. Dries fast with no lasting smell or oily spot. 12.3 oz can contains 10 treatments.