Boxer holding flowers and plunger in mouth with Seresto logo above.

Seresto® for Dogs kills and repels fleas and ticks for 8 continuous months.

Help protect your dog from fleas and ticks so they can stay focused on every little routine.

When they’re protected from fleas and ticks, your dog can stay focused on the unique quirks and behaviors that make them, well, your dog. Seresto® for Dogs offers the performance you expect from a monthly flea and tick treatment like topicals or pills, with the convenience of an easy-to-use 8-month collar. You read that right. One effective, odorless, non-greasy collar = 8 months of protection.

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Seresto® Benefits

The innovative Sustained Release Technology of Seresto® kills and repels fleas and ticks for 8 continuous months. It also aids in the treatment and control of sarcoptic mange and kills lice.

Seresto® kills and repels fleas Fleas
Seresto® kills and repels ticks Ticks
Flea Larvae
Seresto® aids in the treatment and control of sarcoptic mange Sarcoptic mange
Seresto® kills lice chewing lice

Product Label Application & Safety Information
Seresto large and small dog product packages with image of Seresto collar.

  • "It's so convenient, and most works! I couldn't be happier with the results."
    - Angela, Texas

Comparison chart of Seresto vs Frontline vs Bravecto vs NexGard vs Simparica showing that Seresto for dogs is the only product that kills and repels fleas and ticks for up to 8 months.

Seresto® A flea and tick treatment different from the rest

See why vets and owners love the Seresto® collar

  • Required field, no styling


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

Graphic showing how Seresto works through the release technology on a Boxer.

Truly unique collar
technology for your dog

  • Seresto® is the leading, innovative flea and tick collar for dogs that applies two active ingredients over your dog’s hair and skin surface: imidacloprid and flumethrin. This steady release of treatment is effective for 8-month protection against fleas and ticks. That's one convenient, non-greasy, odorless flea and tick collar instead of 8 monthly oral or topical treatments. Fleas and ticks are killed through contact with the active ingredients — no biting required.

Fleas and ticks don’t stand a chance.

  • How does Seresto® work?


    See how the Seresto® collar helps protect your dog from fleas and ticks for 8 months. 1:17

  • 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

Boxer wearing a Seresto collar cuddling with owner on a couch.

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

  • Fleas and ticks can cause diseases that may compromise your dog’s health. Learn about prevention, treatment and the ways you can help protect your dog.

    How does weather affect fleas and ticks? Learn More >

    Flea diseases in dogs: Itchy bites aren’t the only thing you have to worry about. Learn More >

    Tick diseases in dogs: It only takes one bite. Learn More >

Customers' dogs wearing Seresto collars in their homes.

Seresto® gives back.

  • When you purchase Seresto®, you’re joining us in supporting the community. We are proud to be a partner with the following organizations:

    K9s For Warriors. is a nonprofit organization that trains shelter dogs to become therapy dogs and pairs them with America’s recovering 9/11 heroes. Service dogs help where medications often fail so warriors can return to civilian life with dignity and independence., through the Seresto® Circle of Love Grant Program, gives over $100,000 of Seresto® collars to animal shelters and rescues across the country.

    Paws Place Pet Shelter welcomes women and children seeking refuge from abusive situations. With help from Seresto®, when families find themselves at the Rose Brooks Center, their pets will always have a place to stay, too.


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Did you know that Seresto® is also available for cats? SEE SERESTO® FOR CATS

Bravecto® is a registered trademark of Merck Animal Health. FRONTLINE® and NexGard® are registered trademarks of Merial. Merial is now part of Boehringer Ingelheim. Simparica® is a registered trademark of Zoetis Services LLC.

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