Save 35% off your first Autoship with Chewy! 5% off Future Orders!

What Are The Best Flea Collars For Cats?

A cat’s worst nightmare must be having fleas. The best flea collars for cats are reviewed in this article.  How well do the collars work? Are the collars suitable for cats and kittens ? Are there any adverse reactions? How long do they last? and so on. You should feel confident that you can choose an effective flea collar that will suit the needs of your cat, after reading this article.

As an Amazon affiliate, I earn through qualifying purchases.

Best Flea Collars For Cats – Reviews

1. Seresto Flea Collar For Cats

Seresto Flea and Tick Collar for Cats, 8-month Flea and Tick Collar for Cats

The active ingredients are released slowly and over time hence the 8 month time frame for repelling and killing fleas and ticks. A tick for the convenience factor here as it is easier than having to remember to apply flea drops once a month.

It kills fleas within 24 hours after application. It may take up to 48 hours to eliminate ticks.  Any re infesting fleas are killed in approximately 2 hours and re infesting ticks within 6 hours. Okay, so you may not remember all of this but you know someone else has done the hard work for you in this product.

It is water resistant and remains effective after bathing or an occasional swim although repeated exposure to water and sun or rain will reduce the time the collar remains effective. 

The collar has a release mechanism in case the cat gets caught in something totally unforeseen while cat exploring. If you are a cat owner you know that this does happen. Kitties can get into tricky situations. The cat’s own body-weight is enough to trigger the release.

This is a veterinarian recommended treatment. It starts to both repel and kill fleas within 24 hours. Always a tick to have recommendations from a vet.

Some cats may have dermatitis like reactions so check in the early days of wearing the collar that there is no adverse skin reaction. There is information in the instructions about what steps to take if this is the case. Sadly, this will happens sometimes, so take note, read the instructions and observe your cat.

The active ingredients are: Flumethrin 4.5% , Imidacloprid 10.0%. It is odorless. The collar is suitable for all cats, long hair and short hair.  


2. Adams Flea and Tick Collar For Cats

Adams Plus Collar for Cats White Collars 2pk

In addition to killing fleas, it kills ticks, flea eggs and flea larvae. The recommendation is to change this collar after 7 months.

It is suitable for all cats, long hair and short hair. The collar is easy to put on and is easily adjustable.

There are chemicals used, so follow the manufacturer’s instructions.Some cats can have dermatitis like reactions so check in the early days of wearing the collar that there is no adverse skin reaction.

The collar needs to be stretched to activate the ingredients. This is not listed as a problem but rather something to be aware of when using for the first time. The odor can be quite strong and some people have a problem with this.

It starts working straightaway but it can take up to a week to see the full effect of wearing the collar. Be patient.  Remember if you are dealing with a flea infestation a flea shampoo will help deal with that.


3. Sentry PurrScriptions Flea & Tick Collar for Cats

Fleas are killed for 6 months and ticks for 3 months.  If ticks are a problem you may prefer a collar that has longer lasting tick protection.

SENTRY PurrScriptions Flea and Tick Topical for Cats, Over 5 lbs, 3 Month Supply

This is not a breakaway collar.

This product is suitable for kittens over 6 months. 

This collar has an odor that has a varied response from cat owners.  Some people like the smell and others don’t like the smell. If you cat is primarily outside the odor will not be as noticeable. If you already know that fragrance could be a game changer for you this is something to consider.

Be aware that some cats do have reactions to any type of flea collar so we must stress to please observe the reaction of your cat when the collar is first applied. Check the skin where there is direct contact with the collar.

4. TropiClean

TropiClean Natural Flea & Tick Repellent Collar for Cats - Flea & Tick Collar for Cats - One Size Fits All – Waterproof, Breakaway Design – Repels Flea & Ticks Up to 4 Months

 This collar protects and defends against fleas and ticks for up to 4 months.

This collar  uses essential oils.  Here are the ingredients so that you can check for yourself if there is anything your cat may have had a reaction to in the past.

Cedarwood oil 4.3%, Peppermint oil 4.3%, Nylon, Zinc stearate, Almond oil 91.4%

The collar is waterproof, always a plus.

Our Number 1 Recommendation is…

1. Seresto Flea & Tick Collar

When buying a cat flea collar there are three things that you need to take into account 

 1.Effectiveness and Safety 2.Budget 3.ConvenienceFor all of these reasons we have chosen the Seresto Flea Collar as our first choice.

The Bayer Seresto collar is not greasy and the slow release of the active ingredients makes it hard to beat. Just put it on the cat and forget about it.  Remember to check for any skin reactions in the first few days of wearing.  The ingredients are released continuously over the eight month period life span of the collar.

You are getting a quality product with the safety aspect of a release mechanism that allows the cat’s own strength to widen the collar and act as a quick release if your cat become entangled.


Handy Tip : Don’t throw away the old flea collar. Pop it inside the vacuum cleaner. The Seresto collar may last longer than 8 months so there is a chance to kill fleas as they are vacuumed.

The Best Flea Collar For Cats – Things To Check

 * Look for a collar that has a breakaway aspect or a safety catch. This is a safety feature so that if the cat becomes entangled, the collar will break away with the cat’s body weight.

 * Check to see if the collar is water resistant or if the effectiveness of the collar will be lessened if the collar gets wet.

 * Check the length of time that the collar remains effective and record the expiry date. Those ‘use by’ dates seem to creep up and the expiry date can come and go and be forgotten. For this reason buying more than one collar at a time is an option. There is no expiration date on a Seresto collar. Once the Seresto collar is opened the life of the collar is 8 months.

 * Flea collars for cats and dogs have different active ingredients and a flea collar meant for a dog can make a cat very ill.

 * If your cat has known skin allergies be aware of any potential irritants. As a precaution, certainly check the first few days of a new collar being fitted to ensure there are no irritating factors for the cat.

Are Cat Fleas Dangerous To Humans?

Cat fleas can cause redness and itching often around the feet and ankles on humans. It is not a pretty sight and those bites are extremely itchy. The best way to avoid this is to keep the cat and house free of fleas.

Fleas are an irritant to the cat and can cause discomfort but can also be responsible for medical conditions such as flea bite anemia, tapeworms and dermatitis.  Children can be exposed to these parasites by playing with flea infected cats.These concerns should be taken seriously.

Homemade Flea Collar

The best flea collars for cats are the traditional flea collars however sometimes you may be looking for an alternatives to a traditional flea collar that use chemicals to kill fleas.  

Make your own flea collar using essential oils. Is it going to be as effective as the best flea collars for cats reviewed on this page? You need to look at in the same light as other natural products which mainly act as deterrents to fleas.  A natural product will help keep the fleas away, it won’t kill an infestation.  


TIP: Write the expiry date of the flea collar on a calendar, a few days before the collar expires, which gives you time to purchase a new one before the old one loses effectiveness.

Cat scratching with fleas
This kitty needs some flea control!

How Long Are Flea Collars Effective?

That will depend on the brand you buy and is also reflected in the cost.The best flea collars for cats may cost more to purchase initially however they are longer lasting therefore you will not need to purchase as often. The cost divided by 8 months becomes more reasonable.Collars last from one month to 8 months depending on the brand.

Note: Don’t be surprised if you initially see more fleas after putting a flea collar onto your cat. This does not mean that the collar is not working. The fleas will rise to the top of the coat as they die. Remember to treat other areas of your home for fleas, eg cat bedding, carpet, scratching post and so on.

Cat Flea Drops Are Easy To Apply

Cat Flea Drops are an excellent alternative to a flea collar. The drops are easy to apply and last approximately one month.

What Flea Treatment Is Best For My Cat?

There are so many different flea treatments for cats.  How do you know which one is right for you?  This article explains the differences between each type of cat flea treatment.

cat sleeping between legs
 I do wish flea collars came in a better choice of colors.

Cat escaping from a flea

Leave a Comment

eighteen − five =

This site uses Akismet to reduce spam. Learn how your comment data is processed.