Seresto® is the #1 vet-recommended flea and tick collar.*

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

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.

Seresto^® kills fleas and ticks.

Seresto^® was designed with specific ingredients at doses that are active against fleas and ticks. Studies show that fleas and ticks are highly susceptible to the combination of imidacloprid and flumethrin found in Seresto^®.

The continuous distribution technology ensures that both active ingredients are slowly and continuously released from the collar toward the animal. This ensures that concentrations of both active ingredients are present on the dog during the entire protection period. The active ingredients spread from the site of direct contact over the skin surface. 

It’s crucial that pet owners purchase real and genuine Seresto® products from authorized veterinary clinics and trusted retailers to help ensure product authenticity and performance.  

Find Seresto® at a clinic or retailer online or near you >

Click on the product below to learn more:

Small Dog 

Large Dog 

Cat