Seresto Collar: Surprising 8-Month Test vs Fleas & Ticks... Vet-Approved Wonder! We were skeptical when our vet recommended Seresto, but after eight months of testing, we’re impressed. Ours cats are constantly outdoors, so flea and tick prevention is crucial. The Seresto collar delivers, keeping pests at bay without the overpowering chemical scent some brands have. The 8-month protection is genuinely long-lasting—we only need to replace it once, saving us time and money. Plus, our pets seem comfortable wearing it; it’s lightweight with a soft fit. The vet’s approval adds peace of mind, and seeing our cats free from bites is worth every penny. If you’re looking for reliable, low-maintenance prevention, this collar stands out. The results speak for themselves.