Seresto for Dogs works by releasing two active ingredients — imidacloprid and flumethrin — in low, steady doses. These ingredients distribute through your dog’s natural skin oils, creating a protective layer that kills and repels fleas and ticks on contact. Unlike some treatments, Seresto doesn’t require pests to bite before working, reducing itching, irritation, and the risk of tick-borne diseases. The collar is water-resistant, odorless, and provides continuous 8-month protection, making it a trusted choice recommended by veterinarians.

Yes. Seresto collars are water-resistant, so they remain effective even after bathing, swimming, or exposure to rain. Occasional water contact will not reduce the collar’s effectiveness.

Yes. Seresto is vet-recommended and has been tested for safety in dogs. It releases active ingredients in controlled, low doses that are safe for pets and effective against fleas and ticks. For best results, use as directed and choose the right collar size for your dog’s weight.

Each Seresto collar provides up to 8 months of continuous flea and tick protection. You only need to replace the collar once every season, making it a convenient alternative to monthly treatments.