Seresto® Flea and Tick Collar for Cats and Kittens

Rated 4.65 out of 5
(587)(587 customer reviews)

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Size: 1 Pack
Seresto Flea & Tick Collar for Cats


Seresto Flea & Tick Collar for Dogs - 2 pack


Seresto Flea & Tick Collar for Dogs - 3 pack


Seresto Flea & Tick Collar for Cats - 4 pack


Seresto® Flea and Tick Collar for Cats and Kittens - 5 Pack


Seresto Flea & Tick Collar for Cats - 6 pack


  • Provides 8-months of continuous flea and tick prevention
  • Seresto flea and tick collar for cats works through contact, so fleas and ticks do not have to bite your cat to die
  • Vet-recommended flea and tick prevention for cats in a convenient, odorless non-greasy collar; No need for messy monthly treatments
  • Starts to repel and kill fleas within 24 hours of initial application
FREE delivery Sun, Feb 5

From the manufacturer

seresto veterinarian recommended

Non-Greasy, Odorless Flea and Tick Collar

Seresto collar for cats work for all weights and sizes

Seresto collar for cats is for use on both indoor and outdoor cats and kittens 10 weeks of age and older. The collar kills fleas and ticks for 8 continuous months, no prescription required.

How it works

Active ingredients are stored within the collar and are released in low concentrations for 8 months. This provides 8 months of continuous protection against fleas and ticks in one convenient treatment, instead of 8 monthly oral or topical treatments.

Your pet is our top priority

The well-being of your pet is our top concern with any of our products, including Seresto. Not only did we thoroughly test Seresto, including its active ingredients and collar components, as part of its development for registration in the U.S. and approval globally, but we closely monitor Seresto continuously to ensure its performance. Since initial EPA registration in 2012, over 25 million Seresto collars have protected pets in the U.S. from fleas and ticks.

How to Apply

Step 1

Insert the end of the collar through the buckle.

Step 2

Adjust the collar around the dog’s neck without it being too tight or too loose. It should be possible to enter two fingers comfortably.

Step 3

Pull excess collar through the loop(s). Collar length greater than 1 inch beyond the loop(s) should be cut off unless it is on a growing puppy.

Frequently Asked Questions

How long does it take to work on fleas?

Seresto kills existing fleas on cats within 24 hours after application. After those 24 hours, new fleas are killed within 2 hours.

How do I know if the Seresto collar I purchased is authentic?

It is crucial that pet owners purchase real and genuine Seresto products from authorized and trusted retailers. Counterfeit collars and their packaging look very similar to the actual product. Be sure the collar does not have a greasy feel or an odor.

Does it expire?

There is no expiration date required on the packaging.

The product should be kept in its original packaging and stored as directed on the label.

What are the key ingredients?

The active ingredients in Seresto collars are Imidacloprid and Flumethrin: Imidacloprid to help protect against fleas and Flumethrin to help protect against ticks. No other product has this combination of ingredients.

About This Item

  • Veterinarian-recommended prevention treatment kills fleas and ticks on cats and kittens of all weights and 10 weeks of age and older.
  • Starts to repel and kill fleas within 24 hours of initial application and re-infesting fleas within two hours; works on contact with no painful biting required.
  • Also repels and kills ticks within 48 hours of initial application and re-infesting ticks within six hours; works on contact with no painful biting required.
  • Easy-to-use adjustable collar is odorless and non-greasy; quick-release feature and visibility reflectors provide extra safety.
  • Water-resistant formula continues working for up to eight months, even after bathing and sun exposure.

Active Ingredients: Flumethrin 4.5%, Imidacloprid 10.0%.

Use only one collar per animal. Fit collar around your pet’s neck, allowing for 2 fingers to fit between the collar and your pet’s neck to ensure a comfortable, yet snug, fit. Once collar is properly fitted, cut off any excess collar measuring 1″ or longer. The collar should be worn continuously for the 8 month protection period. Check periodically and adjust fit if necessary, especially when puppies 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.

Water Resistance: It is unnecessary to remove the collar before immersing your pet in water. Seresto remains effective following a shampoo treatment, swimming or exposure to rain or sunlight. In order to maintain an 8 month duration, pets must not be bathed more than once a month. For pets that swim once a month or more, the control duration is reduced to five months for fleas and seven months for ticks.

Use & Care Instructions

One size fits all.

Where is this product sourced from?

We source all our products from manufacturer approved distributors or directly from the manufacturers. Seresto takes pride in ensuring that our furry friends’ wellbeing is always our top priority. We have worked hard to partner with all of the manufactures to deliver 100% authentic products

I have never had a flea problem before. Where are my pets picking up fleas?

Fleas are very hardy pests that are quite capable of hitching rides on a variety of mammals. Wild animals or feral pets traveling through the environment may be a source for a pet’s exposure. Fleas may be brought to the house by:

  • You – attached to clothing, luggage, dog blankets, etc.
  • Your pet – any time your pet steps outside your house, they are potentially exposed to fleas, especially in areas where there are other animals.
  • Stray or homeless cats and dogs – since these animals are not being cared for, they are easy targets for fleas. A single feral cat walking through your back yard even just one time may drop many flea eggs into the grass or under shrubs.
  • Wildlife – particularly raccoons and opossums. These animals typically aren’t seen very often, because they are active at night. A single opossum can carry as many as 1,000 adult fleas! An opossum walking through your back yard even just one time can drop many flea eggs into the grass or under shrubs as they pass through.
  • Non-treated pets in the household – most dogs are treated for fleas and ticks. Often, the cats in the household are not, especially if they are indoor only cats.
  • Non-treated pets in the neighborhood – you may be vigilant about treating your pets for fleas, but your neighbor(s) may not.

What are the benefits of Seresto?

With its innovative delivery system, Seresto offers a breakthrough in flea and tick protection for dogs or cats for eight months.Features and benefits:

  • For dogs or cats.
  • Kills fleas.
  • Repels and kills ticks. If a tick is repelled, it cannot attach and transmit disease-causing organisms.
  • Non-greasy, odorless, easy-to-use.

How does Seresto work?

Inside the unique polymer matrix of Seresto are two active ingredients:

  • Imidacloprid has been used in products for years to control flea infestations.
  • Flumethrin effectively repels and kills ticks.Flumethrin works together with imidacloprid to provide dual action against fleas and ticks. No other treatment has this combination of ingredients.The active ingredients spread from the site of direct contact over the skin surface of the cat or dog.*Sustained release technology*Seresto works similarly to a monthly topical, but as the active ingredients wear off over time, a new supply is continuously replenished in low concentrations. The active ingredients spread from the site of direct contact over the skin surface.Bayer’s polymer matrix technology is designed to slowly and continuously release the active ingredients for eight months, a duration that makes it clearly different from other flea and tick collars.

What if my cat or small dog gets stuck while wearing a Seresto collar?

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 own 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 your cat is not used to collars.
  • Rarely, mild application site reactions may occur such as scratching, redness and hair loss, which usually recover within 1 to 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, collar removal is recommended. If signs persist or become more severe, consult a veterinarian immediately.

What is the expiration date for Seresto for cats?

There is no expiration date required on the packaging by the EPA for this product. The product should be kept in its original packaging and stored as directed on the label.

How do I store and dispose of Seresto?

Do not contaminate water, food or feed by storage or disposal.

  • Storage: Store in original unopened container in a cool, dry place that is inaccessible to children.
  • Disposal: Dispose of container, pouch and expired collar in trash.How can I verify the legitimacy of this collar? is an authorized retailer of Seresto® products, which means we purchase the products we sell directly from Elanco, the maker of Seresto®. If you would like to verify the legitimacy of your collar, call Elanco’s veterinary team at 1-800-255-6826.

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.


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587 Customer Reviews

  • Hands down the BEST solution for Fleas!

    By Kelamie on 11.11.2022 at 18:33

    5 out of 5

    I am a vet and have used the Seresto Collar on my own cat for the past three years. It is an excellent product at a suitable price point. Manufactured by Bayer, it offers best flea and tick protection for cats that I have seen in the industry. It helps to keep my cat healthy and happy!

  • Works amazing!!!!

    By Mandy Lewis on 10.22.2022 at 17:29

    5 out of 5

    I had tried many flea and tick collars over the years and none of them had worked. I was about to give up when my friend recommended Seresto Collar. I ordered one for my cat, and within a week there were no more ticks or fleas on her! This is hands down the best solutions for flea and tick prevention.

  • Kills fleas and ticks better than anything else

    By Jen Wood on 10.15.2022 at 12:58

    5 out of 5

    I have been using Seresto Collar for 8 months now and I am really happy with the results. My cat was scratching a lot and I thought it was due to allergies. However, after showing him a vet he recommended this flea collar and it worked wonders. Now she is much calmer and no longer scratching. I highly recommend this product to anyone looking for a good flea and tick collar!

  • Definitely recommended

    By Carrie Bledsoe on 10.07.2022 at 19:23

    5 out of 5

    I have three cats and I use Seresto for every one of them. It has been 2 years since I started using this flea and tick collar and never had any problems with the ticks or fleas. My vet recommended it to me after she heard about my problem with the other products I was using.

  • I'll be making sure my girls stay in these... They work!!!

    By Ladymakeiba C Dawson on 10.01.2022 at 08:20

    5 out of 5

    I have cats and have tried many different flea and tick collars. Seresto Collar is the best one I’ve found. It’s light, easy to put on, waterproof, and protects my cat very well. I’m very satisfied with this product!

  • Great collars!

    By David Paracka on 09.29.2022 at 09:22

    5 out of 5

    Seresto is the best flea and tick collar for cats in the market. We have tried so many collars over the years, but our vet recommended this collar a few weeks ago and I’m kicking myself for not trying it sooner.

  • It is worth the price

    By Victor Clark on 09.22.2022 at 13:15

    5 out of 5

    I have a cat that has been itching and scratching all the time. We tried everything to help him and nothing seemed to work. I finally found Seresto, which is a flea and tick collar and it’s helped tremendously. I would recommend this product to anyone who has pets with these problems!


    By Abbi on 09.19.2022 at 19:07

    5 out of 5

    I was looking for a flea collar for my cat and I saw that Seresto had a good reputation. I ordered it online and it arrived in a few days. The collar is easy to apply. My cat was initially nervous about it, but once he got used to it, he seemed to like it. I haven’t seen any fleas since I used it.

  • Good bye Fleas!!

    By Tanya Skeen on 09.14.2022 at 12:39

    5 out of 5

    Seresto is the best flea and tick collar! I’ve tried two other brands of collars before Seresto and they didn’t work nearly as well. I think you should give it a try!

  • Works great!

    By Maria С on 09.10.2022 at 17:07

    5 out of 5

    I just have one word: Seresto Collars. It’s the best flea and tick collar for cats on the market right now. I’ve done my research and it has the best rating and reviews. Trust me, I’ve also shopped around so I know what they are all about. The other collars that I looked at were flimsy, with a cheap plastic feel, but this one is durable, feels sturdy in. Best of all, it does a great job of protecting my cat from fleas and ticks!

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