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  6. Seresto Cat Vet-Recommended Flea & Tick Treatment & Prevention Collar for Cats, 8 Months Protection | 6 Pack

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Seresto Cat Vet-Recommended Flea & Tick Treatment & Prevention Collar for Cats, 8 Months Protection | 6  Pack Video
Seresto Cat Vet-Recommended Flea & Tick Treatment & Prevention Collar for Cats, 8 Months Protection | 6  Pack Video

Seresto Cat Vet-Recommended Flea & Tick Treatment & Prevention Collar for Cats, 8 Months Protection | 6 Pack

Item: 83857952PK6
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Make your cat's health and comfort a priority with the long-lasting protection of the Seresto Cat flea and tick collar. Unlike other protection methods, Seresto Cat collars are vet-recommended, stocked by 8,000 vet clinics,* and have been trusted by pet owners for nearly a decade to successfully kill and repel fleas for eight months.

The Seresto Cat collar kills pests on contact within 24 hours of application, eliminating them before they bite or lay eggs. It also kills re-infesting ticks in as quickly as six hours.

Effective for both indoor and outdoor cats and kittens at least 10 weeks old. No prescription needed.

Seresto Cat is a trademark of Elanco or its affiliates.

*Elanco Animal Health, data on file

Key Benefits:

  • Vet-recommended, premium flea & tick protection for cats & kittens without the price tag
  • Long-lasting flea collar kills & repels fleas for 8 continuous months
  • Seresto is the #1 selling non-prescription flea & tick brand, stocked by 8,000 vet clinics (Elanco Animal Health, data on file)
  • Starts working within 24 hours to kill & repel fleas by contact so pests donít have to bite your cat to die
  • Hassle-free, non-greasy, easy-to-use flea & tick protection


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

Useful Information

One collar per animal to be fastened around the neck. Remove the collar from the bag directly before use. Unroll the collar and make sure that there are no remnants from the plastic connectors inside the collar.


  1. Insert the end of the collar through the buckle. Adjust the collar around the animal's neck without tightening it too tight or leaving it too loose.
  2. As a guide, it should be possible to only insert 2 fingers comfortably between the collar and the neck.
  3. Pull excess collar through the loop(s). Excess collar length of greater than 1 inch (2 cm) beyond the loop(s) should be cut off unless it is on a growing kitten, where some additional length may be needed for adjustment as the animal grows.
  4. After application of the collar, three reflector clips may be fixed permanently to the collar to increase the animal's visibility in the dark. Take the clips out of the bag. The clips should be evenly distributed on the non-overlapping part of the collar. The clips are correctly applied when a clicking sound is heard. For safety reasons, once the reflectors are fixed to the collar the clasp closes permanently and cannot be re-opened.

Video Example of Collar Application

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. Rarely, mild application site reactions may occur, such as scratching, redness, and hair loss, which usually recover within 1-2 weeks without the need for collar removal. In some cases, temporary collar removal and bathing may be recommended until symptoms have disappeared. In very rare cases, application site reactions, such as dermatitis, inflammation, eczema or lesions may occur. In these instances, immediately. If your animal is on medication, consult your veterinarian before using this or any other product.

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Do not contaminate feed or food.

Occasional slight itching may be observed in animals that are not used to wearing collars in the first few days after fitting. Ensure that the collar is not fitted too tightly (You should be able to place two fingers between the collar and your cat). Slight hair loss and mild skin reactions due to the mechanical irritation of the collar may occur at the application site which usually recover within 1 or 2 weeks without the need for collar removal. For further guidance regarding individual animal sensitivities. In case of loss of collar, a new collar may be applied immediately. Do not attach a leash to the collar as this may cause breakage.

Storage Directions

Keep the collar in the bag and in the outer packaging until use. As with any pesticide product, do not allow small children to play with the collar or reflectors, or to put them into their mouths. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and cold water after fitting the collar. People with sensitivity reactions to the ingredients of the collar should avoid contact with the collar. Choking hazard. Contains small parts. Do not place collar or reflectors in mouth. Not intended for use on humans.

Customer Reviews

Review Summary
97 Reviews
82% (80)
12% (12)
0% (0)
1% (1)
4% (4)
95% Recommend this product (92 of 97 responses)
By Vicky
Larwill, Indiana
Seresto flea and tick collars for cats
October 29, 2023
Best thing I've found for fleas. Have been using for a few years. A little pricey but worth it. Highly recommend if you have a flea problem. By the way, the dog collars also are exceptional. My son has used them on my grandpups
By Angie
Great x4
August 12, 2023
Great price, website, delivery time, and product!
By Dorenda H.
Marydel, Md.
Best Collar for my Cats
February 21, 2023
I have three cats that go in and out of the house, so I needed an excellent flea collar that would be good for my cats and this collar is the best. I have no problem with fleas or ticks with my cats. It lasts for 8 months so I don't have to keep track of monthly flea treatment which is a plus for me in trying to remember to give them flea protection each month. The price was great for a three pack which was also a plus since these collars are a little pricey. Delivery was prompt and I am so pleased with this website.
By Arnold
Best deal around
April 7, 2022
Best colors for my fur babies
By Ken
Best tick and flea protection and related diseases
February 16, 2022
We live in a rural area with lots of wooded and high grass areas and lots of deer with black-legged ticks. I've been using Serosto collars for years for my dog, and my dog never had a tick or flea. So when we got a cat a few years ago, I've decided to get a collar for the cat too. Our cat roams freely and chases and catches mice, chipmunks, etc. She never had a tick or flea either.

I chose Seresto as it kills ticks and fleas before they bite the cat, so no chance of disease transmission. Most other products make animals' blood poisonous and ticks and fleas have to bite to get poisoned and die. Biting allows the transfer of diseases. Also, I do not want poisonous chemicals in my cat's blood.
By Charles
Salisbury NC
Seresto Purchase
April 23, 2021
My purchase of this product went smoothly from purchase to delivery and we are pleased with the flea collars and will order again in the future!!!

Merchant Response:Charles thanks for the great review. We are sharing this with our warehouse staff. Thank you!
  • Great product
  • Can add up cost when purchasing at least 6 like I do.
By Dianne
These Collars are GREAT!
March 20, 2021
I have a sanctuary for disabled and chronically ill cats and several of them have severe flea allergies. We have spent thousands of dollars on vet care for these animals and were using topical flea medication every 3 weeks but never really got control of their skin problems until we started using Seresto collars. The transformation was amazing, Pearl who looked like an alien due to hair loss and oozing skin lesions now has ALL her hair and does not spend her day tearing at her skin. Tom who was chewing his skin until it bled is now able to relax instead of constantly scratching. I bought 16 - yes it was very expensive - collars for the residents here and while I spent a lot of money the savings on vet visits and medications has been through the roof. No antibiotics or steroids for 6 months for 3 or 4 cats really adds up. We cannot say enough good things about these collars. The only problem I can see is that 1 cat out of 20 got the collar in her mouth and I had to take it off. I think I did not have it tight enough on her neck.
  • It Works.
  • No topical meds needed for most
  • Put it on and forget it for months
  • Make sure it is secure and tight enough not to slip
By Meagon
North Carolina
Pet Groomer & Owner
May 4, 2020
As a Pet Groomer at Petsmart with almost 4 years experience, I can confidently recommend the Seresto Flea & Tick Collar. Not only is the Seresto Collar the best Collar on the market, but I beleive that it beats the Topicals and Chewables/Pills. With Topicals, you have to precisely place them and your pet has to stay still. Topicals are also very greasy and can be rubbed off, washed off, or licked off by other pets, if you are not careful. Most Chewables/Pills have to be prescribed by a Vet and can be very inconvenient to administer(if your pet hates swallowing Pills). With the Seresto Collar, they last up to 8 Months. No vet visits or prescriptions, no monthly, messy applications, and no hiding the pill in food or fighting with your pet to get them to swallow a pill. Finally, the price. You pay no more than $70 for 8 months of protection, versus upwards of $45 a month for Topicals and Chewables/Pills. Save your pet grevience and yourself time, energy, and money by using the Seresto Flea & Tick on your beloved babies.
  • - One time application, Iasting 8 Months
  • - One time fee of no more than $70 for 8 months, versus a monthly fee of up to $45.
  • - No messy, greasy application
  • - No hiding pills in food or struggling to get your pet to swallow a pill
  • - No Vet visits or prescriptions required
  • - Pet has to wear a Collar
  • - Can be slightly pricy, but it is still cheaper than a montly fee of up to $45 for Topicals or Chewables/Pills
Awesome product at a great price!!
April 21, 2020
We love these collars. We had a flea infestation and used these to break the cycle. They work fantastic my animals have been flea free for over a year now!!
By Rita
Birmingham, AL
It's been great!!
April 7, 2020
It has been great for my elderly boy. I have not seen him scratching since putting it on him.

Merchant Response:No news is good new. Thanks Rita!
By Sheila
Crossville TN
Great price on the real deal
February 23, 2020
Last year I ordered a collar from another discount pet place and the collar turned out to be a
knock off that didnt have the same picture or same ingredients and did not prevent ticks!
  • This is second order from entirely pets and I am entirely happy!
Great value for the convenience
June 7, 2019
We have both Lone Star and Black-Legged deer ticks in our wooded area and I often find Lone Star ticks on my cats, especially their butts - yuck. I call them butt ticks. We do not have a flea problem here.
We have four cats and they normally get fipronil topical type products for their tick treatment which only seem to work for 2 weeks, but I have one cat that who won't let me touch her and this collar has answered that problem where I can put her in a towel and quickly put the collar on her, release her and she's good to go for 8 months. I bought this collar from entirelypets because of the problem with fake Chinese products coming from other sellers who I shall not name. EntirelyPets sells the real McCoy and is made in Germany.
  • Works for the time stated. Easy to attach to my cat. Doesn't have a smell.
  • The only con I can think of is if the collar isn't tight enough on the cat, as happened with my cat who doesn't like to be handled when I quickly put it on her, that she later got her front paw hooked in the collar and was hopping around. My grumpy cat allowed me to remove her paw and I carefully tightened it up so that it was no longer loose, but allowed at least one finger space between her neck and the collar. So, that was really my fault, but just be aware of cats that don't take to collars well and monitor them to make sure they don't get it caught on their mouth or a paw - tight but not too tight.
By Regina
Michigan City
March 23, 2019
So far so good, seems to be working well. Happy so far.
By Becky m.
Whitsett nc
Best flea and tick collars ever
January 1, 2019
I have been using this collar for my 3 cats now for 3 years. Even the vet mentioned how good it was that I used this collar. I will never use another flea treatment ever!
  • No messiness. Easy to use.
  • None
By debby2727
Don't use.
June 13, 2018
I bought one a couple years ago for my cat. He is still bald around his neck!
By Sandraelaine
Upstate NY
April 10, 2018
I use these collars on all my animals. I have not had a tick or flea problem since I've purchased Seresto. The are effective and cost efficient extended over the period of 8 months.
By Jane
Carlisle PA
Review for Seresto Flea & Tick Collar for Cats
February 12, 2018
I love this product. My cat hates drops every month. This flea collar is the best and it works for 8 months. Flea drops made her scratch and irritated her skin... She is a happy cat.....
By littleann48
Springfield, MO
I love it.
September 28, 2017
I have 3 cats I've been using Front LIne on for fleas. After the August application, I started seeing fleas when I combed them. Lots of fleas. A friend had gotten her cat a Seresto Flea Collar and was very happy with the results. So I decided to try it. Got one for each cat, and now find no fleas when I use the flea comb on them. Very happy with the results. And thrilled that they last 8 months, so I don't have to reapply every month like my last flea product.
By Joan
Recommended by my Vet
August 30, 2017
Great product. Does the job for my cat with no adverse reaction. Fast shipping.
By wayne
Mckinney Texas
Best price around
July 23, 2017
great flea collar but a little expensive till
you take into account that it lasts for
8 months
By juliebug
Doesn't work
July 22, 2017
I heard rave reviews about this product so I thought I would try it out. We have had our house sprayed, used other treatments, and finally settled on the collar after trying to fight fleas for the last few weeks. I'm still picking live fleas off my cat. This collar doesn't work and I'm sick I paid $50 for it.
By BooBoo
Awesome product
June 14, 2017
The Seresto collar works well and is well worth the investment.
By Katherine
Dover Plains, NY
Best Flea & Tick Collar there is out there!!
May 31, 2017
This is the second time I purchased the product through your company. This second time, the product was made more cheaply, one of the 3 pieces you add onto the collar came broken, and overall I don't think it should have cost the same as purchased last year. I am hoping it does as good of job as the one the year before. One pic of father cat on work computer. Sorry, no children!!
By Mom2zuzuswaggeo
New England
Seresto Collar
May 13, 2017
I was looking for an alternative to liquid vials of tick& flea protection, so this is the 1st time I have used the Seresto collar. It's still early in the season, but so far there have been NO TICKS on my 3 cats. I priced searched and Entirely Pets with the coupon code I had was definitely the lowest cost. I wish the collar was a bit smaller, on all 3 cats I had to cut the left over strap and it does not seem to stay in the loop very well, but if it keeps them and I tick free that's all that matters.
By Lefthandedone1
No more fleas for MEow
May 10, 2017
This is the second year using Seresto for my cats. Put them on and no worries for the spring and summer and fall. Too bad Seresto don't make flea and tick collars for the human pets. Seems like I find tick (s) on me every time I come in from outside.
By Rose
Shenandoah pa
May 5, 2017
My son's cat, Moji, lives near a lot of forest etc. The ticks are terrible. This collar worked great. No more ticks!
By Gary
Greatest Collar
May 1, 2017
I went from pulling 2-3 ticks off of my cats every day to zero starting on the first day of the collar! If this lasts 8 months it will be the best flea tick collar ever. Far better than the drops.
March 27, 2017
I purchased this same collar last year and WOW did it work.
I put the collar on my pet amd in 2 days there were no fleas. I will purchase one every year for my pet.
By spchnc
Sanford, NC
Great Choice
March 20, 2017
Good product. Purchase the 3 pack for the cats but unfortunately one had a reaction to the collar around his neck, causing a sore to appear, so he is not able to wear one.
By Kate
Enterprise, AL
Much improved collar
March 13, 2017
This collar was recommended to me by a veterinarian for my outdoor-indoor cat. He still had fleas/bites on him even with topical flea protection. Within days after putting this collar on him his skin cleared of bite scabs and I noticed he was no longer scratching. He initially did not like the collar on him (naturally) but now doesn't mind it at all. I think this is a great option for pets who go outside and need strong protection.

Questions and Answers