Dealing with recurring monthly topical flea drops that leave greasy neck fur, or struggling to force chewable tick pills down a resistant dog's throat, can turn parasite prevention into an exhausting chore. The Seresto Flea and Tick Collar for Large Dogs (over 18 lbs) is a veterinarian-developed breakthrough that delivers continuous, reliable 8-month protection against fleas, ticks, sarcoptic mange, and chewing lice in a single, odorless collar.
Engineered using a patented slow-release polymer matrix, Seresto contains two active ingredients: Imidacloprid (to control flea infestations) and Flumethrin (to repel and kill deadly deer ticks, American dog ticks, and brown dog ticks). These actives continuously distribute in low, sustained concentrations across your dog's skin and hair lipid layer, killing fleas and ticks on contact without requiring parasites to bite and transmit Lyme disease or Rocky Mountain spotted fever.
The collar is completely non-greasy, 100% odorless, and water-resistant—remaining fully effective even after swimming, monthly baths, or heavy rainstorms. Featuring an integrated safety ratchet release mechanism that allows the collar to widen if caught on a fence, it provides uninterrupted peace of mind across all four seasons.