How quickly does FRONTLINE flea and tick protection kill parasites?
When it comes to pet flea control supplies, FRONTLINE products are best of breed. Our research shows FRONTLINE for dogs and cats will kill 100% of your pet’s fleas within 18 hours and kills 100% of your pet’s ticks within 48 hours of application. Do fleas and ticks have to bite my pet for FRONTLINE to work? No. FRONTLINE supplies your pet with protection if fleas simply come into contact with your pet’s coat within the post-application time periods mentioned above. I just applied FRONTLINE, but I still see active fleas. Why? Fipronil, an active ingredient of FRONTLINE, works by blocking stabilizing ions in the neurons of invertebrates like fleas. Without the stabilizing ions, the fleas die from hyperstimulation. This means that the fleas may become slightly more active just before they die. However, you should rest assured that this is a sign that FRONTLINE is working. I treated my pet with FRONTLINE, but I still see fleas in my home. Why? The fleas you see may have hatched from flea e
