Advantage Is The Fastest Relief From Fleas For Dogs And Not Only Kills Fleas Fast, It Acts On Multiple Flea Stages To Rid Infestations Too. Advantage Is A Fast Way To A Flea-Free Home. An Easy-To-Use Spot-On, Advantage Is Applied Monthly. Its Super Ingredient Stops Fleas Biting Within 3 To 5 Minutes And Kills Both Adult Fleas And Larvae Within 20 Minutes. An Easy-To-Use Spot-On, Advantage Is Applied Monthly. Its Super Ingredient Stops Fleas Feeding Within 3 To 5 Minutes And Kills Both Adult Fleas And Larvae Within 20 Minutes. Since Advantage Works On Contact So Fleas Don’T Need To Bite, Cats Suffer Fewer Painful Flea Bites, Reducing Outbreaks Of Flea Allergy Dermatitis.