Frontline Plus is a fast acting flea and tick control treatment. It kills fleas and ticks including disease causing ticks. Frontline Plus purple pack eliminates flea eggs and larvae and controls further parasitic infestation. The topical solution assists in the control of flea allergy dermatitis and biting lice. The waterproof formula supplies continuous protection even when your pet gets wet. Frontline Plus 2.68 ml per pipette contains two powerful constituents – fipronil and (S)-methoprene. Fipronil kills adult fleas and ticks before they lay eggs. It eliminates them for one full month. The other ingredient (S)-methoprene interferes with the flea egg and larva development and restricts their growth. Thus, breaks the flea life cycle. When large dogs are treated monthly with Frontline Plus L, they are not infested with fleas and ticks. The topical treatment is safe to use on puppies from 8 weeks of age.