Advantage II 4-Pack
Advantage® II is a fast topical flea control for dogs that kills fleas at all life stages. Fleas are killed within 12 hours and, to protect against further infestations, reinfesting fleas are killed within 2 hours. Advantage II kills fleas through contact, so they do not have to bite to die. One convenient waterproof application of Advantage II lasts for 1 month.