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Seresto Flea & Tick Collar for Cats & Dogs

Seresto Flea & Tick Collar for Cats & Dogs

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The Seresto Collar is Bayer's newest product for safely and effectively protecting your pets from fleas and ticks.

Seresto Flea and Tick Collar provides the performance you expect from a flea and tick topical in an easy-to-use collar that provides continuous protection against fleas and ticks for eight months. With Seresto®, pet owners have an effective and affordable option for flea and tick control in an easy-to-use eight-month collar.

Seresto combines two active ingredients, imidacloprid and flumethrin, providing dual action against fleas and ticks. Bayer's sustained release technology provides continuous protection over 8 months.

The benefits of Seresto include:
  • Kills fleas and continues to prevent infestations for 8 months
  • REPELS and KILLS ticks - if a tick is repelled, it cannot attach. If a tick doesn't attach, it can't transmit the organisms that may cause disease
  • Convenient and easy-to-use: one application lasts for 8 months. Just set it and forget it!
  • Odorless and durable construction
  • Available for both cats and dogs


Active Ingredients % By Weight
Flumethrin* 4.5%
Imidacloprid 10.0%
Other Ingredients 85.5%
*Trans Z-1/trans Z-2 ratio: max 66% trans Z-1 and min 34% trans Z-2


Review Summary
1 Reviews
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100% Recommend this product (1 of 1 responses)
By Hilary
Most Economical & Highly Effective
April 24, 2022
We have had multiple dogs for several years and have used the Seresto collars on both our large and small dogs. The collars are easy to use, don't make a mess, and have kept both fleas and ticks off of our dogs and out of our home. (We live in the South, so fleas and ticks are a big concern for us.) It's great to only have to purchase one collar for each dog and have it last for the duration of the time when the fleas and ticks are a problem. (Note: We do not let the dogs swim in the collars and we remove them when they are bathed, so not sure if they would be as effective for as long if the dogs kept them on in the water.) We will definitely continue to purchase and use the Seresto collars!

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