Title: Seresto Vet-Recommended Collar: Testing 8-Month Protection Against Fleas... Big Dogs Love It! We’ve been testing the Seresto Large Dog Collar for months, and the results are impressive. Designed for dogs over 18 lbs, this 8-month flea and tick treatment has lived up to its vet-recommended reputation. The collar’s slow-release formula provides continuous protection, and we’ve noticed a significant reduction in pests around our homes. Our biggest dogs, in particular, appreciate the comfortable fit and the fact that they never seem itchy or irritated—even after extended wear. The lasting protection means fewer monthly treatments, which has been a relief for our busy schedules. While no collar is perfect, Seresto’s blend of effectiveness and convenience has made it a standout in our lineup. So far, we’re satisfied, and our pups couldn’t be happier.