Vetality Firstect Plus offers vet quality protection from fleas and ticks and prevents all flea stages from developing. Vetality Firstect Plus topicals eliminate fleas, flea eggs, ticks and lice. These vet-quality topicals contain the same active ingredients (fipronil + (S)-methoprene) as leading vet brand, FRONTLINE Plus for dogs but cost less. Use only on dogs 8 weeks and older. Each application lasts approximately one month.