Vetality Advotect II for Cats contains imidacloprid, and pyriproxyfen the active ingredients found in Advantage II. Vetality Advotect II offers vet quality protection but COSTS LESS than the national brand. These broad-spectrum topicals not only KILLS but REPELS fleas! Advotect II also breaks the flea life cycle preventing reinfestation! Advotect II for Cats effectively prevents and kills all stages of the flea lifecycle: fleas, flea eggs and larvae. It offers the same level of protection as products available from your vet. Compare this affordable and effective product to Advantage II for Cats. Advotect II is available in a six-month supply for superior protection.