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

Seresto® is vet-recommended and no prescription is required. You can purchase it easily at your favorite retailer or in one of over 8,000 veterinary hospitals and clinics nationwide. Seresto® protects your pet from fleas and ticks for 8 continuous months.

Seresto® is easy, effective and works for 8 continuous months.

  • An icon of a tick and flea
    8 months of protection

    Slow-release design allows the active ingredient to kill and repel fleas and ticks for 8 continuous months. 

  • An icon of a tick and flea
    Saves money

    One Seresto® costs less over 8 months compared to most monthly orals and topicals. 

  • Trusted product icon
    Years of defense

    Seresto® has been trusted by pet owners for nearly a decade to keep pets protected from fleas and ticks.

  • Vet-recommended, no Rx

    Over 32 million sold. Stocked by over 8,000 veterinary hospitals nationwide. No prescription needed.

See how Seresto® compares to the competition.


†Based on label comparisons.

One Seresto® collar outlasts the typical flea life cycle - which can take up to 6 weeks to complete.

Seresto is a trademark of Elanco or its affiliates.
All other trademarks are the property of their respective owners.

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

*Seresto® is water- resistant and remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for 8 months. In order to maintain an 8-month duration, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to five months for flea control, and reduced to seven months for tick control.