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Seresto 8 Month Flea & Tick Collar for Cats & Kittens

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With its innovative delivery system, the Seresto Flea & Tick Collar for Cats & Kittens offers a breakthrough in flea and tick protection for cats for 8 months. Inside the unique polymer matrix of the Seresto collar are two active ingredients: imidacloprid, which has been used in products recommended by veterinarians for years to control flea infestations, and flumethrin, which effectively repels and kills ticks, larvae and nymphs. These ingredients work together in this unique flea collar to provide dual action against fleas and ticks like no other treatment!

Key Benefits

  • Easy to use 15-inch adjustable collar is perfect for cats 10 weeks or older
  • Kills fleas ands ticks to prevent transfer of organisms that cause disease
  • Provides continuous protection from fleas and ticks for up to 8 months
  • Non-greasy, odorless, water-resistant and easy to use
  • Includes 3 optional reflector clips to help keep your cat visible at night
  • Performance you would get from a topical treatment but in a convenient easy to use collar


The collar is designed with a release mechanism. In the unlikely event of a cat being trapped, the cat's own strength is sufficient to widen the collar to allow for quick release. ALWAYS read the entire product label prior to use.

See all items by Seresto

  • Item Number
  • Brand
  • Lifestage
    Kitten, Adult


8-month prevention and treatment of fleas and ticks on cats and kittens 10 weeks of age and older. The collar should be worn continuously for the 8 month protection period. Check periodically and adjust fit if necessary, especially when kittens are rapidly growing. Keep the collar in the bag and in the outer packaging until use. Replace the collar after 8 months for optimal tick and flea protection.

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Customer Reviews

Rated 4.7 out of 5 by 486 reviewers.
Rated 5 out of 5 by The only thing that worked When my indoor cats get fleas, I usually go buy frontline because it is the only flea medicine that would work but last year and this year it seemed to have no effect on the fleas. My cats were miserable. I was afraid to try the cheaper flea treatment because they are very sensitive and it had made them sick in the past. I tried the Walmart brand that said it was like frontline and it had no effect on the fleas either. I was into this like $100 dollars and was so frustrated. So, nothing was working and they were miserable. So i decided to try Seresto flea collar. I bought them at 40% off and worried that they wouldn't keep them on, that they would be sensitive to the medicine on it, or that it wouldn't work. I am so happy to report that it is worth the extra money! After about one minute they didn't even mind the collar, they didn't have any reactions and it killed all the fleas and it is supposed to work for 8 months!! I am using this from now on. Thank you. October 20, 2016
Rated 4 out of 5 by Works! My indoor sometimes on the balcony cat got fleas unexpectedly. I hadn't treated her and then they showed up and I felt so bad. I gave her baths, spot treatments, treated the house, I tried everything. We weren't infested but I'd still find the suckers on her during our daily combing. I came across this and read the other reviews. It came in so quickly! My baby has been adult flea free since day two of wearing. I did pick three tiny ones via comb a few days ago, but she's no longer itching and she's happy again. I imagine the number of fleas will continue to decrease and go away. I will certainly keep this on hand and she won't go a day without one. I also got flea traps that are working and show me how the numbers are diminishing. I recommend also the victor ultimate flea trap if you're looking for added support. October 17, 2016
Rated 5 out of 5 by No more itchy kitties and doggie! This year the fleas are in full attack. My uncle was a Vet and never thought highly of flea collars. And I don't like the gooey stuff that goes on the cats' necks. It always drives the cats nuts and attracts dirt. So while looking to buy a good flea shampoo I came across the Seresta collars. After seeing that many Vets were recommending I decided to try them. The only hesitation came at the price. I have 2 cats and a dog. Retail in the local PetSmart was around $72 apiece. I went online and found Chewy.com and realized I could now afford them. I received the collars in 2 days and my guys have been wearing them for over a week now. I bathed my indoor/outdoor kitty today and found only FOUR fleas! And those were on his nether region. He was virtually flea free! The other cat and the dog are now sans bugs also. This product works! October 13, 2016
Rated 5 out of 5 by So Grateful This Worked! After using Frontline religiously, all summer long, I returned from vacation to find my cats and home were infested with fleas. I double dosed my cats with Frontline, thinking that would take care of it, and then I suffered for three more weeks with seemingly no flea reduction until my veterinarian recommended Seresto. He said that it could be used immediately, and would not hurt cats who had also been recently dosed with Frontline. Within three days things had improved significantly. I no longer see fleas crawling over my cat's face. They are no longer scratching all night long, my bed is not covered in flea dirt. It was a miserable situation, and Seresto very quickly turned it around for my household. Still finding fleas here and there, vacuuming and doing laundry proactively, but ever, ever so grateful to have some relief. Thank you Seresto! You've gained a loyal customer! September 27, 2016
Rated 5 out of 5 by Love it! I have 2 indoor/outdoor cats who love to play in the (5 miles of) woods behind our home, but the woods are full of ticks. The product I'd used for years stopped working 2 years ago. I then tried EVERYTHING on the market - one cat had a bad reaction to one of them, but not one product killed the ticks. Then I found Seresto. My cats have used it for 17 months now (they're on their third collar each). This product WORKS! No ticks and no bad reactions. Love it!! Thank you!! I would have had to keep my cats indoors and they would have been miserable. Their lives are full thanks to Seresto! October 25, 2016
Rated 1 out of 5 by Buyer Beware I bought this flea collar for one of my cats and expected Bayer to fulfill its promise to eliminate my animals fleas. The enclosed leaflet states that, "Seresto kills existing fleas on cats within 24 hours with protection against further infestation lasting eight (8) months." At first, I thought the collar was working and I purchased another one on a different site for my other cat. What a horrible mistake! It was evident right away that the second collar was not working at all and I am returning it. While the first collar seemed t lessen the problem, all fleas should have been eliminated by now but aren't. The price that I paid, while high, was much less than they sell for in stores and I would have been happy to pay to buy replacements every eight months, if only they performed as advertised. To say that I am disappointed is an understatement. I plan to look into returning the collar that I ordered on this site, if at all possible. My opinion of the Bayer company has diminished considerably. May 7, 2016
Rated 5 out of 5 by Such relief for both of us . My 14 year old cat Peggy Sue had never had fleas until we took a stray dog in, allowing him to sleep in our attached garage with his fleas apparently. I used repeated doses of monthly treatments but my poor cat and dog both got no more than a few days relief. I sprayed my entire house with a long lasting pesticide and spread pesticide granules all around my h o use and did all the other things like getting new pet beds and trashing all the old. All to no avail. My poor Peggy w as crying all the time and not just the meow type but loud cries that sounded like the word mom. Seresto has already calmed down the scratching and she hasn't cried at all on the second day. The collars might be a little costly but I am impressed with it and with service I got from Chewy. Delivery was less than 2 days. October 2, 2016
Rated 5 out of 5 by Simply the best ever I use them on my 6 cats and 3 dogs. They work terrific and never any sign of fleas. I was buying them from my vet and a local pet store chain for almost double what chewy had the for on sale. Even the retail price is $25 less than what I paid locally. I purchased 9 collars. After free shipping and no tax, I saved a fortune. I also received them less than 2 days after I ordered. October 29, 2016
  • 2016-10-31 T06:50:40.578-05:00
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