Seresto Flea & Tick Collar for Dogs

Item #0040921



Seresto Flea & Tick Collar for Dogs

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Seresto for dogs is the new alternative to monthly topicals. Non-greasy, odorless, easy to use and water-resistant. Flea and tick control that lasts up to 8 months. Read More

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Seresto Flea & Tick Collar for Dogs

The new alternative to monthly topicals. Seresto kills fleas within 24 hours and ticks within 48 hours after initial application. Re-infesting fleas are killed within two hours and re-infesting ticks on dogs are killed in as quickly as six hours.As the active ingredients wear off the dog or cat over time, Seresto replenishes the hair and skin with a new supply of active ingredients, providing continuous protection against fleas and ticks for eight months.

The Seresto Dog Collar 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 

Seresto 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

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

View manufacturer and/or label information

Learn how to apply Seresto to your dog:

If you find a lower price on a product, with an identical brand and model number, Jeffers will match the competitor's price!

Call for details! (800)533-3377


  • Brand: Bayer Animal Health
  • Type: Flea & Tick
  • Form: Collar
  • Dog Size: Small Dog (under 18 lb), Large Dog (over 18 lb)

Reviews (30)

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  1. 5.0 out of 5 stars

    "Best flea and tick collar!!"

    I have 4 dogs on a farm without any fleas or ticks! Love these collars and Jeffers saves me money on them!

  2. 5.0 out of 5 stars

    "We have 12 dogs "

    And everyone of them has this collar on. We live on a active farm right close to a heavy tree line. We had a flea infestation last year which a company treated for us and this year we tried these collars. So far so good! I bought them in March and not the first flea. My dogs are hard on their collars and they have held up to swimming, ruff housing, dirt, you name it. Our Malinois, border collies and German shepherds ARE HAPPY & FLEA FREE! Worth every penny we spent.

  3. 5.0 out of 5 stars

    "works better than any spot on i've tried"

    I'm not too thrilled about my dogs wearing collars for 8 months out of the year, and neither are they, but the seresto has kept both of my farm dogs flea and tick free for the last 2 years. Any ticks I've seen have already died. It does give use peace of mind, although I wish it was a little lighter for my JRT and a little thinner overall. Worth the $.

  4. 5.0 out of 5 stars

    "Flea Free for 6 months"

    I will take it! Nothing worked before we bought these collars. We had absolutely no fleas for a solid 6 months. YEA!

  5. 5.0 out of 5 stars

    "Very pleased!!"

    Have purchased 3 of these collars. They work great! No fleas or ticks. Will purchase from Jeffers again. Very prompt shipping and the customer service is exceptional!

  6. 5.0 out of 5 stars

    "Great product! "

    Bought 3 large and 1 small. Live on 18 acres, dogs have no fleas and ticks. A friend of mine that works at vet office recommended these. Saved a lot of money with Jeffers!!!!

  7. 5.0 out of 5 stars

    "works great"

    put is on my 9 week old border collie and by 24 hours the fleas were just falling off

  8. 1.0 out of 5 stars

    "Not working as expected"

    I had high hopes for this collar, having heard from other people that it seemed to work for them. We purchased two when Jeffers had a buy one, get one for half price sale. They may work for fleas (we've never had a flea problem here, so I can't really say), but they only sorta-kinda work for the ticks. We live in NH and are infested with all kinds of ticks including the dreaded deer tick. While we did find a couple of dead ticks early on, after the first couple of weeks we've been regularly pulling off partially to fully engorged ticks. There *may* be fewer ticks latching on than without the collars, but still plenty enough to cause irritation to the dogs and infection if the ticks are carrying any diseases. I do not think these collars work as well as the top spot type products like Frontline Plus, etc.

  9. 5.0 out of 5 stars

    "Seresto Collar"

    I have a Jack Russell that had flea allergies and almost lost all of his hair. This collar took care of the fleas and he has a fine coat of hair. He has had one of these on him every 8 months for the last three years

  10. 5.0 out of 5 stars

    "long lasting flea collar"

    No more pills or hated drops on the back of the neck. This collar works & lasts 8 months. This is the second one I've purchased & my daughter uses it for her dog & cats. Seems pricey until you compare what you spend on the pills or drops. Happy dog, happy me.

  11. 5.0 out of 5 stars

    "Seresto Flea Collars"

    Last year was the first time I had used the Seresto flea and tick collars and was very pleased. We live on 10 acres and plenty of room to get buggy. I just recently purchased collars from Jeffers, for almost half price of the vet price, for 6 dogs, large and small and also our cats. Jeffers is great with delivery too. Thank you Jeffers

  12. 5.0 out of 5 stars

    "Okay so far"

    As always, Jeffers price is very good. I bought it because my husband had brought home some flea infested rescues without checking them first. My dogs and cat and house were soon infested, too. The spot on stuff was getting tedious and messy, so I am giving this a try. It took a couple of days for the collar to take effect, but it seems to be keeping the fleas off. I also haven't noticed any ticks taking hold, either, and we have lots of those around! I am hoping it will work the entire 8 months as advertised. Fingers crossed!

  13. 5.0 out of 5 stars

    "Excellent value"

    Works as advertised and cost less than purchasing at the vet clinic.

  14. 2.0 out of 5 stars

    "Not soo great!"

    Works, but not as well as the drops. I can definitely tell a difference from having nothing, but this collar on a large Jack Russell, doesn't quite cut if for me. Drops worked better for years, now with the collar, seeing 3 to 4 fleas on the dog after a week of use. Sub-par protection if you ask me.

  15. 2.0 out of 5 stars

    "Worked for 2 months only"

    Bought these collars for my 2 dogs and 3 cats. Worked for about 2 months. I now have fleas in my house and have been pulling ticks off my dogs. Cheaper to buy Advantix, etc since it didn't work long. Not impressed with this high dollar stuff.

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