Description: Vetality Avantect II contains imidacloprid, permethrin and pyriproxyfen – the active ingredients found in K9 Advantix II for dogs. Vetality Avantect II is vet quality protection but costs less than the national brand. These broad spectrum topicals not only kill but repel fleas, flea eggs, ticks and mosquitoes. Avantect II also kills all stages of fleas, repels biting flies and kills lice. Do not use Vetality Avantect II on cats.