Seresto® for dogs is the #1 vet-recommended flea and tick collar. Seresto® for dogs kills and repels fleas and ticks through contact — no biting required. Seresto® provides 8 continuous months of flea and tick prevention for dogs Seresto® dog collars protect against chewing lice. Seresto® is easy to apply, odorless, non-greasy and water-resistant.

The Seresto® collar works with a unique polymer matrix of two active ingredients, which spread from the site of direct contact over the skin surface of your dog:

• Imidacloprid has been used in products for years to control flea infestations.
• Flumethrin effectively kills and repels ticks.
• Flumethrin works together with imidacloprid to provide dual action against fleas and ticks.

No other product has this combination of ingredients.

Sustained release technology

Seresto® works similarly to a monthly topical in the fact that the active ingredients spread from the site of direct contact over the skin surface. The active ingredients in Seresto® are released in low concentrations from within the collar and, thanks to your pet's skin and coat, spread from head to toes, even the tail. As the active ingredients wear off over time, a new supply is continuously replenished in low concentrations for 8 months. The long-lasting, 8-month duration of Seresto® differentiates it from other flea and tick collars.