Seresto Flea & Tick Dog Collars

Item #0040921


Seresto Flea & Tick Dog Collars

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Seresto Dog Collar offers 8 months of protection against fleas, ticks, lice and aids in the treatment of sarcoptic manage on dogs and puppies 7 weeks and older. Available in small (15") or large (27.5") Read More

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  • 1-1 items - $54.99
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Featured Advice from Our Experts

Itchy Dog: Causes and Solutions

Itchy skin, excessive scratching, persistent licking, hot spots, rashes, ear problems, face rubbing, skin redness, paw chewing, irritable behavior, scabbing, low energy and loss of hair! WOW… quite a list of behaviors that might be driving you and your dog crazy!


Seresto Dog Collar

The Seresto Dog Collar kills fleas within 24 hours and ticks within 48 hours after initial application. Re-infesting fleas are killed within two hours and reinfesting ticks on dogs are killed in as quickly as six hours. As the active ingredients wear off the dog. The collar replenishes the hair and skin with a new supply of active ingredients, providing continuous protection against fleas and ticks for eight months.

Repels ticks, preventing the tick from attaching and transmitting disease-causing organisms. Bayer's Polymer Matrix is designed to slowly and continuously release the active ingredients (imidacloprid and flumethrin) for 8 months. Includes optional reflector clips that can be attached to collar for safety at night.

Features & Benefits:

  • no need to remember monthly applications
  • non-greasy
  • odorless
  • easy to use
  • water-resistant*
  • repels ticks on dogs and prevents diseases
  • for use on dogs and puppies 7 weeks and older
  • small dog collar has "break-away" notches for safety
  • includes optional reflector clips for visibility at night

Small Dog collar is approx. 15" L (for dogs up to 18 lb)
Large Dog collar is approx. 27.5" L (for dogs over 18 lb)

Active Ingredients: imidacloprid and flumethrin

View manufacturer and/or label information

Learn how to apply to your dog:

*Bathing or swimming more than once a month could result in a shorter active period for the collar.


  • Brand: Bayer Animal Health
  • Type: Flea & Tick
  • Form: Collar

Reviews (56)

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  1. 5.0 out of 5 stars

    "Nothing is better!!"

    We live in the country and have a bad flea problem for years. We have bought topical liquid, sprayed the yard endlessly to no avail. Bought seresto collars for 6 dogs and 1 cat. Not a flea or tick left. This is the only thing that has ever worked. I highly recommend these.

  2. 1.0 out of 5 stars

    "save your money"

    I bought these for all 3 of my dogs. They worked great for about a month that's all. Don't waste your money.

  3. 5.0 out of 5 stars

    "Love the collar "

    I’ve bought what I thought was these collars for off a very poplar online sales site. They didn’t work because they were fake. These are actually the correct collars at a great price. Second year buying them from Jeffers, not a flea or tick on my dog.

  4. 5.0 out of 5 stars

    "We love our Seresto collars."

    Seresto collars are worth every penny! They keep fleas off of our pets, out of our home, and help control them in our yard. You can't go wrong with these.

  5. 5.0 out of 5 stars

    "Don't buy"

    I bought two of these collars one for my small dog and one for my large. Made sure all fleas were gone prior to putting the collar on and within a day they both had fleas back on them. Very disappointed!!!

  6. 5.0 out of 5 stars

    "Best collar in east, west, north, and south!"

    The collar does just what it says and you can't beat that. I got them(3) much sooner than I had expected and the price was as good as I had priced locally. All in all you can't beat that!

  7. 1.0 out of 5 stars

    "Dont Work"

    I purchase this for 2 little dogs on March 27, 2018. don't waste your money. My dogs scratched and rolled all the time. Fleas did not mind this. Nothing against Jeffers but I wasted my money.

  8. 5.0 out of 5 stars

    "You cannot go wrong with these collars!!"

    These collars are the best!! I have been using them for 2 years. I used to use a product I purchased from my vet and applied it monthly. I have 5 dogs and was spending about $75.00 a month on flea and tick medicine. My dogs are working farm dogs and I think these are the best on the market.

  9. 5.0 out of 5 stars

    "Love these collars! "

    I started using these collars two years ago and have never looked back. They are AMAZING and keep my hounds flea & tick free for at least 8 months at a time. Thank you to all who make & supply them!

  10. 5.0 out of 5 stars


    Great product!!! I have it on my dogs and cats and it has kept them free of fleas for over the 8 months. It has kept them off for a year!!!

  11. 5.0 out of 5 stars

    "great protection"

    I have always used Advantix and decided to switch as this is so much easier and less messy and lasts longer.

  12. 5.0 out of 5 stars

    "seresto collar"

    you name it I tried it.The only product to work 100 percent on all 5 of my dogs. not one flea or tick. We live in wooded land and have breeds from long hair to short hair, excellent product.

  13. 5.0 out of 5 stars

    "seresto flea collar"

    my great dane had fleas when i took her to the vet's for a check up, the vet suggested Seresto, I had never tried it before and was shocked to see how expensive they are, BUT when you realize that they last 8 months, its not that expensive, THE BEST PART is they WORK, I have 2 great danes and 1 dane/mastiff and i put all 3 on the collars and its great. WORTH EVERY PENNY

  14. 1.0 out of 5 stars

    "Not as good as they used to be"

    For several years I have bought this for my dogs. However, this year I bought them in April that lasted until August. I bought more in September and they didn't work at all.

  15. 5.0 out of 5 stars

    "great stuff"

    never had a flea/tick collar that worked until this one. took a few days but no more fleas or ticks!

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