Seresto Flea & Tick Collar for Cats, 2 Collars (16-mos. supply)

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About This Item

Details

  • This collar provides premium flea and tick protection for cats and kittens.
  • The long-lasting formula works to kill and repel fleas for 8 continuous months per collar.
  • Each fast-acting collar is designed to start working within 24 hours.
  • Seresto kills and repels fleas by contact, so pests don’t have to bite your cat for the collar to be effective.
  • Offers hassle-free, non-greasy, easy-to-use flea and tick protection.

Ingredients

Instructions

Size

FAQ

Learn More About Seresto From Our Team of Experts

Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

About Seresto for Cats

Stop Fleas & Ticks

Seresto provides premium flea and tick protection without the hassle of a prescription. It starts killing and repelling fleas within 24 hours and continues working for 8 months to prevent new infestations.

Seresto Flea and Tick Protection

Seresto provides fast-acting, long-lasting flea and tick protection in a clinical strength collar.

Kills & Repels

Seresto kills and repels fleas and ticks by contact, so pests don’t have to bite your cat to die.

Protects for 8 Months

The Seresto cat collar provides 8 months of flea and tick protection for long-lasting peace of mind.

No Prescription Needed

Seresto is some of the toughest flea and tick protection around, and you can buy it without a prescription.

Odorless & Non-Greasy

The hassle-free collar is easy to use, odorless, and non-greasy.

How Seresto Works

Seresto’s active ingredients are stored in the collar's polymer matrix and slowly released over 8 months. No messy monthly treatments or hard-to-swallow pills—just effective flea and tick protection! The Seresto cat collar is suitable for use on cats and kittens 10 weeks or older. Read and follow all label directions and talk to your vet if you need further guidance.

About Seresto

Seresto is easy to use, odorless, and non-greasy for mess-free convenience. Available for both dogs and cats, Seresto provides up to 8 months of flea and tick protection, with no Rx required.

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Questions & Answers

60 Customer Questions


My cat cuddles with me to sleep and occasionally sleeps on my pillow. Is it okay for her to continue to do so once I put the collar on her? It wouldn’t hurt her or myself?

Answer by ChewyMay 05, 2019
It is safe to allow pets to sleep in bed with you while wearing this collar. The active ingredients spread from the site of direct contact over the skin surface, so it is not recommended to continuously touch the collar.

Does this Seresto collar also kill flea eggs?

Answer by ChewyDec 31, 2023
This collar kills and repels fleas, ticks and flea larvae. It kills existing fleas within 24 hours, killing and repelling fleas before they lay eggs.

Are these collars designed with a break away feature?

Answer by ChewyMar 01, 2024
Because some pet owners may be concerned that a cat or small dog could get stuck while wearing a collar, Seresto is designed with a safety release mechanism. In the unlikely event of the cat being trapped, the cat's strength is sufficient to widen the collar to allow for quick release. A hard pull causes the ratchet-release mechanism to allow a widening of the collar. The small dog and cat collars are equipped with a predetermined breaking point. A harder pull triggers the breaking of the collar at this point.

If my cat is cleaning itself and starts to lock the collar is it bad for them

Answer by ChewyAug 09, 2021
When sized properly (snug but loose enough for a finger underneath) the cat will have difficulty licking the collar. The collar is non-toxic but it can cause upset stomach if it were to be licked or bit by your pet. If pieces of the collar were to be ingested it can cause an obstruction so it's best to reach out to a veterinarian and Bayer's medical emergency hotline which is 1-800-422-9874.

4.4
Rated 4.4 out of 5 stars
9170 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Active Ingredients

77% Positive

Duration of Protection

79% Positive

Effectiveness

80% Positive

Safety

80% Positive

5214 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Andrea on Jan 25, 2026

Seresto works!

Despite on of our cats having rash problems in the past, and warnings of rare seizures in some pets, we tried Seresto. We felt the pros outweighed the % of cons

Despite on of our cats having rash problems in the past, and warnings of rare seizures in some pets, we tried Seresto. We felt the pros outweighed the % of cons. An indoor cat, Fred's coat/skin cleared up within a few weeks of starting over 8 months ago and the fleas/flea dirt was gone within two weeks. Indoor/outdoor cat, Chewy, was flea free within a week or so. Husband was worried about Chewy getting caught up with a collar outside, but it is designed to be a break away collar. I definitely prefer the collars over the monthly liquid medication. The cats do as well. I do not miss the fights every month!


Rated 1 out of 5 stars
By Bruni on Jan 5, 2026

EXTREMELY EXPENSIVE

I buy 12 each year with a cost of 600+ a year. We buy them because they work and honestly have not searched for another brand. Hopefully One that works and is not

I buy 12 each year with a cost of 600+ a year. We buy them because they work and honestly have not searched for another brand. Hopefully One that works and is not so expensive. To top it all; now the company does not include the REFLECTORS with these collars that are so important especially when they roam in the back yard in the dark. NOT a Satisfied Customer. Paying lots of money and not receiving these reflectors. We pay more each year for less. These prices should go down quickly before they start losing clients. Called Chewy and they researched why these reflectors are not included. They are a safety hazard. REALLY?? My Kitties have been wearing these reflectors for years with no problem at all Will be looking for another reputable company. I think this is just an excuse.


Rated 5 out of 5 stars
By Tracy on Jan 7, 2026

Wow I’m empresses!

Since thanksgiving I had been battling a flea infestation in my apartment. I have 2 indoor cats who occasionally go out into my balcony upstairs. I used credelio

Since thanksgiving I had been battling a flea infestation in my apartment. I have 2 indoor cats who occasionally go out into my balcony upstairs. I used credelio pill, and that did not work! I clean, vacuumed, sprayed and repeated every day! The fleas were relentless. Decided to try seresto flea collars, although alittle on the steep side for me, they were worth every penny, within days started seeing dead fleas around. My cats scratched less and less. It’s been over 2 weeks using the collars and they work, I’m so happy to report. And feel some relief for first time! I will definitely buy another set. And got them in about 2 days very quick!


Rated 4 out of 5 stars
By T on Jan 7, 2026

works, but not for 8 months

Let me say, I bought these because a vet recommended them, but he said they really only work for 6 months. Well, we are on month 5, and we had autoship set up for

Let me say, I bought these because a vet recommended them, but he said they really only work for 6 months. Well, we are on month 5, and we had autoship set up for 6 months, but today I woke up with flea bites on my ankles, so I guess they only work 5 months. And I still recommend them because we tried every other product on the market that is OTC and none of them worked. This has worked great, but don't expect 8 months out of it. BTW, we have 1 indoor and 2 outdoor cats. The indoor cat is the one we found fleas on. Make it make sense.


Rated 5 out of 5 stars
By Julie on Dec 17, 2025

Best flea collar!

My cats can't use the liquid stuff because it irritates their skin. I tried this collar on my semi-feral, crazy, outdoor/indoor cat. She's in the woods all the time,

My cats can't use the liquid stuff because it irritates their skin. I tried this collar on my semi-feral, crazy, outdoor/indoor cat. She's in the woods all the time, getting into trouble. She was not irritated at all, and even though she's lost three sets of ID tags this year, she has never managed to get out of this. She has never brought home a hitchhiker! This really does last the entire eight months. This collar is also endorsed by my vet!


Rated 1 out of 5 stars
By Nicole on Dec 18, 2025

Doesn't work

I bought The color for all of my cats. I originally bought it because I wanted something that would work in eliminating fleas when I wasn't sure if my cat took her

I bought The color for all of my cats. I originally bought it because I wanted something that would work in eliminating fleas when I wasn't sure if my cat took her credilio ( another edible flea prevention that does work). The first month was fine because most of my cats were already on credilio but after about 2 or 3 months I started getting flea bites and had to give the credilio again. They really don't seem to do anything because I will get flea bites right after the month of effectiveness for the credilio.


Rated 1 out of 5 stars
By Jennaviere on Dec 3, 2025

The lack of knowledge

When I called to cancel my order that I had already cancel months ago but still auto shipped anyways. The person was not honest on how the return system works. I

When I called to cancel my order that I had already cancel months ago but still auto shipped anyways. The person was not honest on how the return system works. I was told she was processing my refund right away and it would take 3-5 days to get it. Then told she would sent a label to my email for me to return the package. Come to find out that the package has to be returned and check in before the 3-5 days start on the refund of your money. I would been okay with this knowledge upfront. It makes since to want the item back before sending a refund but say so. Being honest is the best way to be. Then when I used the chat option to get and update and explained to the person what was said and how disappointed I was. They were very rude. Customers service makes or break a reputation. One sad customer I finally did get my refund.


Rated 1 out of 5 stars
By Reyna on Dec 1, 2025

Didn't break when cat got stuck

I purchased several of these breakaway flea collars for my cats, trusting they would keep them safe if they ever got caught or tangled. Unfortunately, my confidence

I purchased several of these breakaway flea collars for my cats, trusting they would keep them safe if they ever got caught or tangled. Unfortunately, my confidence was misplaced. I thought I had lucked out getting them on a BlackFriday sale. Boy, was I wrong - I am deeply regretting buying these now. Just a few moments ago, my cat, LoudMouth, became trapped by her collar and, in a panic to free herself, managed to wedge her front leg into the collar. Thankfully, it wasn’t fully around her neck, but the collar did not release as it should have. My cats wear breakaway collars often, and they typically unclip with pressure; however, this product failed to work as intended, putting my cat in distress and real danger. Her cries were terrifying! My niece and I instantly ran to check on her when we heard her, she was so scared, her little heart was going a mile a minute. My first thought was,"Why didn't it break?" This event just shattered my confidence in these collars. I am so scared now, as I also put this collar on a cat that recently got out. I'm worried it won't break if he gets stuck somewhere. UGH.


Rated 5 out of 5 stars
By Cheri on Jan 15, 2026

It WORKS!

I have a cat that's extremely sensitive to fleas. I used to use the monthly treatments, but found that this works better. For me, it seems to last eight months

I have a cat that's extremely sensitive to fleas. I used to use the monthly treatments, but found that this works better. For me, it seems to last eight months. Yes I know they're expensive, but I stagger the months so that i'm not putting eight collars on at one time.


Rated 5 out of 5 stars
By Anita on Dec 16, 2025

Good collar

I originally bought it for one cat because if his history of being allergic to other flea collars. After one week, it turned out he was allergic to this one too

I originally bought it for one cat because if his history of being allergic to other flea collars. After one week, it turned out he was allergic to this one too. I called my vet and she told me to put it on another cat, so I put it on one of my other cats. I haven’t seen any fleas on her since I put it on her. It works. Just make sure your cat isn’t allergic to other flea collars before putting on your cat because