Seresto flea & tick collar on orange cat

You'll both appreciate 8 months of continuous flea and tick prevention.

Cats are independent by nature, but they still need your help with flea and tick protection. Seresto® collar for cats is designed to be a convenient way for you to help protect your cat from fleas and ticks that can cause bites. 

Our innovative Sustained Release Technology provides protection from fleas and ticks for 8 continuous months in each non-greasy 8-month flea collar. That's one easy-to-use collar instead of 8 monthly treatments.


Seresto® Flea & Tick Collar Benefits

The Sustained Release Technology of Seresto® for cats kills and repels fleas and ticks for 8 months in an easy-to-use, odorless, non-greasy flea collar.

Seresto<sup>®</sup> kills and repels fleas FLEAS

Product Label Application & Safety Information
Seresto<sup>®</sup> for cats packaging  and collar
  • Seresto® collar for cats is engineered for 8 months of continuous protection.
Seresto eight-month flea & tick collar for cats

Truly unique collar technology for your cat.

  • Seresto® is a unique polymer matrix flea & tick collar that offers a continuous supply of two active ingredients: imidacloprid and flumethrin for effective 8-month protection against fleas and ticks. That's one convenient, non-greasy, odorless flea and tick collar instead of 8 monthly treatments

    The active ingredients are stored within the collar. They are released in low concentrations and are distributed over your cat's hair and skin surface for 8 months. As active ingredients wear off over time, the Seresto® flea collar for cats continuously replenishes the skin and hair coat with a new supply of active ingredients. Fleas and ticks are killed through contact with the active ingredients - no biting required. 


Seresto® means 8 months of
effective, convenient flea and tick prevention.

  • Why the Seresto® 8-month flea collar gets solid reviews


    See what pet owners and veterinarians alike are saying about Seresto®. 2:10

  • How does Seresto® work?


    See how the Seresto® collar helps protect your cat from fleas and ticks for 8 months. 1:14

  • How to use the 8-month Seresto® cat collar


    Learn about the proper fit for Seresto®, an 8-month flea and tick collar for cats, that's non-greasy, odorless and easy to use. :58

  • Seresto® dog and cat collar: Release Mechanism


    All Seresto® 8-month flea and tick collars are designed with a ratchet-release mechanism. :39

  • Seresto® flea efficacy


    Watch Seresto® kill fleas effectively in this video shot four days after application. 1:42

  • Seresto® tick efficacy


    Watch Seresto® effectively repel ticks four days after application. 1:43

Eight-month Seresto collar for cats

Works for you.

  • Less hassle, no mess. The Seresto® flea collar for cats is non-greasy, and helps avoid the hassle of applying monthly treatments.

    Easy to use. Application is easy. Seresto® takes minutes to adjust on your cat, and provides treatment that lasts 8 months.

    Designed for your cat. The Seresto® cat collar has a two-way release mechanism that allows your pet to get out of tight spots.

Cat wearing Seresto flea and tick collar

Works for your cat.

  • Fleas don't have to bite to die. Seresto® works through contact killing and repelling fleas that can cause painful bites.

    Protection against ticks. Seresto® kills and repels ticks, too. And if a tick is repelled, it can't attach and transmit diseases.

    Less stress. With 8 months of continuous flea and tick prevention, you don't have to worry about the stress of re-applying a topical.

Veteran with service dog

Works for your community

  • When you purchase Seresto®, you not only help prevent fleas and ticks on your cat, you also join us in supporting causes that celebrate the important bond between people and animals. Through the 2019 Seresto® Circle of Love Grant Program, will give animal shelters and rescues $100,000 worth of Seresto® collars to help prevent fleas and ticks on dogs and cats waiting to be adopted.

    Safety for Women and Pets. Seresto® supports domestic violence shelters across the country that house survivors and their families, including dogs and cats, so they can heal together.

    K9s For Warriors. Every service dog in training at K9s For Warriors — a non-profit that pairs specially trained shelter dogs with post-9/11 veterans suffering from PTSD — gets a Seresto® collar.

Seresto collar for cats - flea & tick infographic

Cat wearing Seresto flea & tick collar looking out a window

The more you know, the better. For both you and your cat.

  • Learn about the ins and outs of fleas and ticks, how bites can affect your cat, what can happen if left untreated, and more.

    Myth: ticks don't harm cats.Learn More >

    Why do the fleas keep coming back?Learn More >

    Fleas bites can hurt your cat, and your cat's health.Learn More >

    When and where are fleas and ticks a concern?Learn More >

Did you know that Seresto® is also available for dogs? SEE SERESTO® FOR DOGS

1Dryden MW, Payne PA. Biology and control of ticks infesting dogs and cats in North America. Veterinary Therapeutics. 2004;5(2):135-154.

2Cadiergues MC, Joubert C, Franc M. (2000). A comparison of jump performances of the dog flea, Ctenocephalides canis (Curtis, 1829) and the cat flea, Ctenocephalides felis felis (Bouche, 1835). Vet Parasitol. 92(3):239-241.

3Protecting animals in summer. WAF website. Available at: Accessed July 20, 2012.

Seresto® is protected by U.S. Patent No. 7,910,122.

Frontline is a registered trademark of Merial.