Frontline spot on is a fast acting and long lasting solution to protect your dog from ticks and fleas and the diseases they can carry r r r r how it works r r r r frontline is absorbed into the skin and distributed with the natural oils all over your pets body rather than entering your dogs bloodstream frontline kills parasites as they make contact with the skin r r r r using frontline spot on every month helps keep your dog safe from ticks and fleas so you can keep on sharing quality ti