Best Flea Collar For Cats 2021 – Reviews And Buying Guides

1. Seresto
2. Bayer3. Lorddon
Seresto Flea and Tick Collar for Cats, 8-month Flea and Tick Collar for Cats

Advantage II 6-Dose Large Cat Flea Prevention, Flea Prevention for Cats, Over 9 Pounds

Cat Flea and Tick Prevention Collar - Cats Flea and Tick Control with Adjustable Design Natural Ingredients Waterproof

Pets are cute, no doubts. But real trouble kicks in when you have to deal with the pest problems that might deeply affect their skin coat. Of all the pests, the one that trouble the most are the fleas. A flea causes severe itching, and cats scratch themselves to get rid of the irritation. In the process, they damage their skin, and that might, ultimately, cause hair to fall.

Understanding your concern and the difficulty of dealing with these pests, we have curated a well-detailed guide on the best flea collar for cats in town. This guide includes everything that you will ever need to buy the best flea collar for cats from the lot.

Without much ado, let’s look into the top picks of this equipment we have curated. All these products are selected based on the factors that are mentioned later in the article.

Top 9 Best Flea Collar For Cats 2021

1. Seresto Flea and Tick Collar for Cats

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

The Seresto Flea and Tick Collar for cats is easy to put on and protects cats from flea and ticks. The collar can be worn alongside the ID collar or tag and is completely odor-free. As the collar doesn’t irritate the cat in any way, your pet won’t try to get rid of the product. The collar guarantees eight months of flea and tick protection.

 The collar is completely non-greasy and is easy to put on like ordinary collars. Also, there would be enough space between your cat’s neck and the collar. This ensures that there won’t be any excessive sweating around the neck area.

As the collar repels the flea and ticks and its reproductive cycles, the insects don’t even have to crawl or bite the cat for the formula to kill them. This means there won’t be any itching sensation, thus preventing the cat from hurting itself.

The collar is suitable for cats aged ten weeks and above. The working of this collar is pretty simple. The collar has two compounds in it – imidacloprid and flumethrin. These compounds are released automatically in small quantities throughout the cat’s hair coat for about eight months. The formula is strong enough to kill existing fleas and repel the production or growth of new ones.


  •   Ease to put on
  •   Effects last for about eight months
  •   ID tag can be easily hanged along with the collar
  •   Non-greasy and odor-free
  •   Suitable for cats above ten weeks of age


  •   The collar may be loose for petite cats
  •   The product can spin around in the position, and this could cause accidental cuts

2. Bayer Flea Prevention and Treatment

Advantage II 6-Dose Large Cat Flea Prevention, Flea Prevention for Cats, Over 9 Pounds

This is yet another product from Bayer and is meant for large cats that weigh over 9 pounds. The pack contains the formula for nine months of use. The product is strong enough to kill fleas, tick, and its eggs and larva.

The product requires you to carefully administer the formula on the collar of the cat. It then gets absorbed onto the hair coat, and when the fleas come in contact with it, they’ll be eliminated. As the product is non-greasy and doesn’t have any particular odor, your cat won’t be irritated.

One dosage of the liquid formula starts doing its work in about 12 hours and lasts for 30 days. After the effective period of one dosage, clean the collar, and apply the next dosage. This ensures that the collar doesn’t get any foul smell, and also the formula gets easily distributed all over.

The product isn’t waterproof when you apply it. But after 24 hours of application, the formula hardens and becomes waterproof. Thus, even if you bathe the cat with the collar on, the effects of the formula would continue to be effective.

Unlike other flea-removal formulae, this isn’t harsh on the skin or the hair coat. This means that your cat won’t suffer from any side effects like hair loss or skin rashes. But make sure you don’t allow them to lick the formula.


  •   Easy to apply
  •   Effects stay on for 30 days
  •   Becomes waterproof after 24 hours
  •   Odorless formula without any distinctive smell
  •   Meant for large cats over 9 pounds


  •   Doesn’t remove ticks or lice

3. Cat Flea and Tick Prevention Collar 

Cat Flea and Tick Prevention Collar - Cats Flea and Tick Control with Adjustable Design Natural Ingredients Waterproof

This cat flea treatment collar from Lorddon Store is one of the best flea collars for cats mentioned in this list. It consists of natural ingredients and doesn’t irritate the cat’s skin or senses in any way. It is non-greasy and odor-free. Thus, your cat would be completely comfortable with the product.

The formula stored in the collar spreads throughout the cat’s body with the help of the natural body oils found in the cats. The fleas or ticks need not bite to get killed. The pests are eliminated once it comes in touch with the formula.

The collar is suitable for cats of all sizes and breeds. The product is adjustable, implying that you can easily tighten the product according to the girth of the cat’s neck. This ensures that the product doesn’t spin around and stays in position all the while.

Apart from fleas and ticks, the formula is powerful enough to kill lice, mosquitoes, and larvae of all these pests. This ensures that your cat is protected from the pest infection for a long time. The formula stays active for about eight months, after which its action reduces. It is waterproof; therefore, your cat can enjoy its bath time without any limits. Also, the formula contains olive oil, lemongrass oil, and citronella oil.


  •   Suitable for all breeds of all sizes
  •   Easy to put on and off
  •   Is completely waterproof
  •   The effect stays on for about eight months
  •   Are non-greasy and odorless
  •   Doesn’t have any harmful toxins that might cause skin rashes


  •   The collar is very thick and can may not comfortably fit a small cat or kitten

4. Hartz Ultra Guard Flea and Tick

Hartz Ultra Guard Flea and Tick for Cat and Kitten Collar (2-Pack)

The Hartz Ultra Guard Flea and Tick for Cat and Kitten Collar comes as a pack of two, and each package provides flea protection for about seven months. The collar is fit for cats of all breeds and sizes. You can easily adjust the length and chop off the rest. This ensures that our cat won’t feel irritated, and it won’t try to take it down.

The collar can be worn along with your cat’s regular collar or harness. It doesn’t have any hard ends and, therefore, won’t poke your cats’ neck. The unique construction of this collar ensures that it doesn’t turn around and stays in position.

About the formula in the collar, it isn’t completely natural and consists of some synthetic compounds that spread through the natural body oils found in the cat. This flea protection collar is completely waterproof. So, your cat can easily enjoy its bath, and you don’t have to worry about the product losing its effects.

The collar is ideal for use on cats and kittens that are above 12 weeks of age. The collar might not fit comfortably around cats that are younger than that.

The formula is completely non-greasy, and even if your cat goes a day without bathing, it won’t irritate or make the hair coat sticky. This is a great advantage and is not seen in most competing products in the same price range.


  •   Non-greasy formula
  •   Odor-free and doesn’t cause any irritation
  •   Suitable for cats and kittens above 12 weeks of age
  •   Doesn’t contain any harmful chemicals
  •   Waterproof formula


  •   The formula might leak onto your hands upon touching
  •   Might not last for seven months as promised

5. Flea & Worm Collar for Cats 

Flea & Worm Collar for Cats - Flea Control and Tick Treatment - Better than Oral Flea Control

This flea and worm control collar from Rolf Club 3D is suitable for cats above 10 weeks of age. No matter what breed your cat belongs to, this collar would efficiently eliminate fleas and about ten other pest species that constantly bother your cats.

Forget about buying expensive tablets or ointments to counteract the pest attack. This collar is as efficient as any flea medication, and the effect is visible within 48 to 72. The collar is pretty easy to put on and would easily sit on the cat’s neck. Even after wearing this collar, you can put on any regular collar or harness to control the pet.

Apart from the pests that bother the pet, the collar gets rid of the worms too. Some cats suffer badly due to the attack of worms that live in their haircoat. The formula in this collar will slowly spread throughout the haircoat and kill the worms and pests without disturbing the natural oil levels of the cat’s body.

Vets recommend the product, and it is proven to not harm your cat in any way. It isn’t greasy at all and is waterproof as well. Some formulae tend to make the hair coat super slick, and you might have to forcefully bathe your cats to get rid of the greasy texture. With this collar, no such problems occur.


  •   The effective formulation that shows effect in just 42 hours
  •   Non- greasy and odorless
  •   Suitable for cats of all breeds (above 10 weeks of age)
  •   Gets rid of harmful worms and other pestering pests


  •   Long usage of this collar might cause bald patches

6. CRUZYO Flea and Tick Prevention for Cats 

CRUZYO Flea and Tick Prevention for Cats - One Size Fits All - Waterproof Best Protection and Adjustable - 8 Month Essential Natural Herbal Oil - Gray

The Cruzyo Flea and Tick Prevention Collar are one-size-fits-all types of collars, and all you have to do is simply put the collar around your cat’s neck and chop the rest off. The product has natural herbal oils that efficiently eliminate lice, flea, ticks, and the larvae of these pests. This ensures that the pests won’t make their return for a long time.

The formula works for about eight months, and once the effect is gone, you might have to repurchase the product. The collar’s adjustable and grooved design ensures that it doesn’t move around or spin around while it’s around the cat’s neck.

Make sure you adjust the collar in such a way that it isn’t too tight or too loose. If the product is too tight, it can lead to bald patches, and if it’s too loose, your pet can easily get rid of it.

About the formulation of the product, it contains lemon, eucalyptus, lavender, and linaloe oil. All these herbal oils are effective in curbing the pests’ activities and nourish the hair coat. As the product doesn’t contain any harmful synthetic chemicals, it won’t cause any skin rashes or irritate the cat’s senses.

The strong locking design of the collar makes sure that your cat doesn’t get rid of the collar all by itself. Once in position, the product doesn’t spin around, and the low concentrated formula is slowly dispersed onto the cat’s haircoat. The formula is further spread all over the body using the natural oils on the cat’s body.


  •   Natural formulation
  •   Natural oils nourish the hair coat
  •   Suitable for cats of all breeds
  •   Easy to put on and hard lock design ensures that the cat won’t get rid of it
  •   The product lasts for about eight months
  •   Waterproof design
  •   Non-greasy and completely odorless


  •   The collar is super thick and might cause discomfort for the cat in the long run

7. Arava Flea & Tick Prevention Collar 

Arava Flea & Tick Prevention Collar - for Cats & Kittens

The Arava Flea and Tick Prevention Collar are filled with naturally active ingredients that help prevent the pests and nourish the hair coat. Among the ingredients are peppermint, geranium, cinnamon, thyme, eastern red cedar, citronella oil, rosemary, and castor oil.

The castor oil and citronella extracts are excellent agents in promoting the growth of thick haircoat. These agents also act as carrier agents to spread the other ingredients all over the cat’s body.

As the product consists only of natural ingredients, it is safe not only for your pet but also for kids and other people around. The formulation doesn’t cause rashes or skin allergies to your pet. Also, unlike other pet collars, this isn’t too thick, which solves the problem of a potential bald patch.

Other natural essential oils included in the product act as soothing agents and are commonly used in aromatherapy treatments. Thus, your cat would get a good night’s sleep and remain calm.

As the ingredients used are natural, you don’t have to worry about any kind of poisoning. Even if your cat licks its body, the formulation won’t do any inner harm. Also, it is completely waterproof after 48 hours of application.

Coming to the usage, it is just like any other flea-prevention collar. You just have to put it around your cat and chop off the excessive part. Make sure you don’t put the collar direct out of the packing. Leave it in the open air for 48 to 72 hours. This helps in activating the formula, and the effects would be seen within the next 48 hours.


  •   Suitable for cats of all breeds and size
  •   The formulation shows effective within 48 hours
  •   Contains only natural ingredients
  •   Has essential oils that promote aromatherapy
  •   Non Greasy formulation
  •   Low-width and a thin collar


  •   Has a distinctive smell from the herbal oils, which may not be liked by cats

8. Hartz UltraGuard Plus Reflective Flea & Tick Collar 

Hartz UltraGuard Plus Reflective Flea & Tick Collar for Cats and Kittens

This yet another pest-prevention collar from Hartz is specially formulated to get rid of flea, ticks, and its larvae and eggs. The collar is reflective and can be worn along with regular pet collars. The reflective strap is visible from about 500 feet and highly useful, especially when the regular pet collar doesn’t come with reflective strips.

The formula protects the cats’ hair coat from the pest attack and prevents the hatching of its eggs for about seven months. It is waterproof and doesn’t cause any itching sensation to the cats.

The collar would fit perfectly around the cat’s neck. You need not have to worry about the cat getting rid of the product. The lock of this collar is pretty hard to open, and also you can form a snug fit around the cat’s neck. The product comes in a 14-inch size, and you can chop off the excess product.

The product has a safety removal lock which can be used to get rid of the collar when in case of emergencies. However, this lock isn’t accessible to the cats.

The collar’s active ingredients are emitted in small amounts and circulate to the rest of the cat’s body through their body oils. It doesn’t hamper the cat’s natural oil production, but the hair coat might become greasy if the cat doesn’t take a bath regularly.


  •   Suitable for cats and kittens of all breeds
  •   Has reflective straps on it
  •   Comes with a quick-snap lock for emergencies
  •   Contains active ingredients that last for about seven months
  •   Gets rid of larvae and eggs along with the pests
  •   Doesn’t have any pungent odor
  •   Waterproof construction


  •   Can be greasy if the cat doesn’t take bathe regularly
  •   The strap may be a bit too thick for small breed dogs

9. TropiClean Natural Flea & Tick Repellent Collar 

TropiClean Natural Flea & Tick Repellent Collar for Cats

The TropiClean Natural Flea and Tick repellant come in a one-size-fits-all design that can be adjusted and then chopped off according to the circumference of the cat’s neck. The product has a waterproof design and prevents breakaway by the pets.

This pet collar consists of natural ingredients that not only repel the growth and attack by pests, but also help in promoting calmness. This is achieved by active ingredients like peppermint and cedarwood, which have a calming effect and are usually included for aromatherapy.

As the product contains only natural ingredients, the collar’s effect stays only for about four months. But the advantage is that your cat doesn’t have to deal with any irritation or itching sensation caused due to the harmful chemicals.

Apart from the active natural ingredients, the product contains some inert ingredients like zinc stearate and nylon. The nylon component is used in the making of the collar while the zinc stearate acts as a preservative and also for its dispersing action.

If you are looking for a good flea collar for your cat that isn’t greasy and doesn’t have any kind of smell, then this is the best cat flea collar you can find online.


  •   Gets rid of the flea along with its eggs and larvae
  •   Suitable for all cats irrespective of its breed
  •   Contain naturally active ingredients that are found in aromatherapy as well
  •   Doesn’t contain any harmful chemicals or toxins that might affect the cat’s skin
  •   Safe for cats and the humans around
  •   Doesn’t contain permethrin or pyrethrin
  •   Collar forms a snug fit around the dog’s neck


  •   As the product has a natural formula, it takes a bit longer to show the effects

Factors To Consider While Buying Best Flea Collar For Cats

1. Size

As a pest collar is basically a collar, you need to make sure that your pet finds the right fit. If the collar is too small, it will irritate the cat and cause bald spots. On the other hand, if it’s too big, your cat would easily escape from its clasps.

To be on the safer side, choose a cat collar that comes as a one-size-fits-all type. In this way, you can find the right size and then chop off the remaining collar band.

Apart from the length, the thickness of the collar should also be considered. As a flea-control collar can’t be used as the main collar, you will need a rope in a harness or regular cat collar. In that case, the cat’s neck area would be crowded with too many collar straps. So, make sure this collar is comparatively thin and doesn’t bother your cat much.

2. Type of the pest collar

There exists a variety of pest collars. 

The most common type contains synthetic chemicals inside that are flea repellent in nature. These collars use the cat’s natural body oils to propagate the chemicals throughout the body.

Such flea collars are highly effective and easily kill the fleas and ticks within two to three days. However, these are highly toxic and not safe for humans.

The other type is similar to the chemical flea collar, but instead of the chemical agents, these collars contain naturally active ingredients. As the ingredients are all-natural, it would take some time to show its effects.

The last type of flea collar is the ultrasonic collar. We haven’t mentioned this collar in this list, but pet parents use it to get rid of pests. As the name suggests, this flea collar uses ultrasonic waves to get rid of the pests.

3. Budget

The cost of the product is also a concern. You don’t want to spend a fortune on these collars if it is going to be used only for a few months. So set a budget in mind and then start the search for the best flea collar for cats.

4. Period of usage

The period of usage also matters. Most collars offer an 8-month usage period, while the natural ones come with 4 to 6 months of usage. It isn’t recommended to use the product beyond its maximum usage period as it might turn poisonous, and the compounds will lose their action after the said period.

5. Waterproof

Most collars are waterproof. Waterproof collars ensure that the formula doesn’t get wasted every time the cat comes in contact with the water. Some collars require some time to get activated. During this period, they aren’t waterproof at all.

Get The Best Flea Collar For Cats To Get Rid Of All The Pest Problems Now!

With that, we have covered a detailed guide on how you can buy the best flea collar for cats. Make sure you go through the factors and then search for the options. In this way, you will have some metrics in mind to help you buy the best flea and tick collar for cats.

Always remember that flea collars come in all price ranges. The most expensive one doesn’t guarantee full control over the pest attack. Buy the product based on its ingredients. Above all these, the comfort of your pet matters the most. If they show any signs of discomfort after a day or two of use, take them to the vet and ensure that the flea collar isn’t causing any irritation.


1. Do flea collars make cats sick?

Yes, there are chances that the flea collars might make your cat sick. For this reason, go through the contents of the product before buying them. It’s always safe to go for an all-natural flea collar. The product might take some time to show its action, but it won’t be toxic for the cats as well as for humans.

While using chemical-based flea collars, your cat might be vulnerable to stomach upset, nausea, or diarrhea when ingested. So, make sure the amount of artificial ingredients in the flea collar is very less.

2. Should indoor cats wear flea collars?

Fleas and worms can attack both indoor and outdoor cats. Therefore, indoor cats should also wear flea collars. Fleas are as irritating for the cats as they are for us. Cars end up scratching their skin to get rid of the itching sensation. So, to avoid this situation, it’s better that you put a flea repellent collar around their neck.

3. What do flea collars do for the cats?

Flea collars contain chemicals or compounds that can repel and curb the growth of flea and other species of pests that attack cats. These collars kill the pests upon contact, and as long as the collar is on, the pests won’t make its return.

The compounds in the formula use natural body oils of the cat spread all over the cat’s haircoat. Thus, the fleas are killed.

4. Can a flea collar kill a cat?

Unfortunately, yes. Flea collars, at times, might contain some harmful chemicals that could prove toxic for cats. As these chemicals use the body oils to disperse all over the body, there are high chances that these compounds might enter the cat’s body when the cat licks their haircoat. So always go for nothing less than the best flea collar for cats and never settle for products that are cheap and use lots of chemicals.

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