Seresto Flea & Tick Collar for Dogs vs Vet's Best Topical Flea & Tick Treatment for Dogs

Pick Seresto if you want the longest-lasting, vet-recommended protection and don't mind a collar: one collar covers 8 months, works from 7 weeks of age, and is odorless and non-greasy. Pick Vet's Best if you prefer a plant-based spot-on and want to avoid synthetic insecticides, accepting monthly reapplication and a strong clove-thyme scent. Reviewers rate Seresto highly (4.4 from nearly 9,000 ratings) and report reliable flea and tick control; Vet's Best draws mixed feedback, with some owners citing the smell and inconsistent results.

• Choose the Seresto collar if you want set-and-forget protection that lasts most of a year and is recommended by vets.
• Choose the Vet's Best spot-on if you want a natural, plant-oil formula applied monthly instead of wearing a collar.