7 Best Flea Collar For Cats of 2019

Your furry little pet can bring in a horde of fleas from the outside — and these fleas can even make their way to and into your bed, sucking on your blood, leaving tiny black flea feaces in their wake and carrying nasty, infectious parasites. Not to mention the world of pain they cause your cat.

If your little critter is feeling itchy and irritable, we can help you.

In this guide, we will talk about:

  • 7 best flea collars of 2019 for cats
  • Types of Insecticide in Flea Collars for Cats
  • What are the features a flea collar for cats should have
  • What are the dangers of fleas on cats
  • How to check your cat for fleas
  • FAQs

 We have looked at dozens of flea collars and have recommended our top picks based on the best features:

7 Best Flea Collar For Cats of 2019

Bayer Seresto Flea and Tick (Top Pick)Best Prevention for Cats
  • FEATURESVeterinarian-recommended prevention
    One flea collar = 8 months of protection
    Avoid the hassle of monthly treatments
Rolf Club 3D Flea Collar for CatsBest for Your Cat
  • FEATURES3D protection for your pet
    6 months best protection .
    Quick effect
Totpets Pet Flea and Tick CollarBest Flea and Larvae Killer
  • FEATURESWaterproof
    Prevents infestation

We narrowed down our search to 7 of the best flea collars for cats in the market, based on ingredients, design, size, quality, and effectiveness.

1.Bayer Seresto Flea and Tick (Top Pick)

Bayer Seresto Flea and Tick (Top Pick)

Seresto is easy to use, non-greasy, odorless and contains the active ingredients, imidacloprid, and flumethrin, which kills fleas that are hiding deep in your pet’s fur in under 24 hours and kill new fleas within 2 hours.

It also has an auto-release function which snaps open the collar if your cat feels trapped. The repellant lasts 8 whole months and not just kill flees but ticks as well.

  • Non-greasy, non-toxic and odorless
  • Repels and kills ticks as well
  • Last 8 months
  • Auto-release function
  • Not all natural
  • A bit pricey


2.Rolf Club 3D – Best Flea Collar for Cats

Rolf Club 3D Flea Collar for Cats

Rolf Club 3D Flea Collar is next in line to the throne. The new formula from Germany is perfect for cats as it doesn’t cause any irritation, is odorless and non-greasy. The collar takes a little longer to kill fleas than Bayer, approximately 24 to 48 hours. It also claims to last for 8 months, though some users claim its effectiveness decreases slightly after 4 months of use.

The collar is easily adjustable on cats and even small kittens and can be opened by your pets in emergency situations. The great thing about it is that it claims to repel mosquitoes as well.

  • Less expensive than Bayer
  • Kills fleas within 48 hours
  • Repels mosquitoes as well
  • Auto-release function
  • Adjustable
  • Not all natural
  • Effectiveness decline after 4 months
  • Have to take off collar when bathing


3.Totopets Pet Flea and Tick Collar

Totpets Pet Flea and Tick Collar

Totopets flea collar uses the potent active ingredient Tetrachlorvinphos, which is the secret to its effectiveness. Be warned though that the chemical can cause allergies in your cat, so make sure you test your pet first before you put the collar on it. Besides that, the collar is exceptional and gets rid of flea eggs, larvae and bites for 6 months. It can be fitted on cats as young as seven weeks, and the design is slim enough that it hides under the cat’s actual collar. It also releases a faint but not-unpleasant odor.

  • Kills flea eggs, larvae and biting adults within 24 hours
  • Can be fitted on 7-week old kittens
  • Breakaway design
  • Slim design fits under the collar
  • Last 6 months
  • Comes with a free finger toothbrush
  • Waterproof
  • Contains Tetrachlorvinphos which can cause allergies in cats


4.ONMOG Flea

ONMOG Flea and Tick Prevention Collar for Cat

ONMOG Flea and Tick Prevention Collar contain all-natural essential oils, which are not harmful to cats, and do not cause itchiness or allergies. The collar is a bit slow-acting, and fleas, ticks, and their eggs start dying off several days after it is put on the cat. However, it lasts for 8 months, and the collar keeps out insects not just from the cat but from the surrounding as well.

  • Gets rid of flea, ticks, and eggs
  • Uses all natural ingredients
  • Lasts 8 months
  • Waterproof
  • Fleas only start dying after several days
  • Strong odor of essential oil
  • More effective with cat flea shampoo and spray


5.Pet Gallo Flea & Tick Cat Collar

Pet Gallo Flea & Tick Cat Collar

Pet Gallo is one of the best flea collars for a cat, which comes with a really attractive price tag. The collar protects your cat from adult biting fleas, their larvae and eggs and is soft and comfortable around your cat’s neck. It is adjustable and can fit on cats of all sizes and last up to 6 months.

  • Kills adult, baby and flea eggs
  • Pleasant smell
  • Last 6 months
  • Water resistant
  • Potent chemical insecticide
  • Made in China
  • No breakaway release


6.Only Natural Pet EasyDefense

Only Natural Pet Easy Defense Flea & Tick Collar

If you don’t want your precious cat to be exposed to harsh chemicals, this all-natural flea collar is for you and your pet. The active ingredient contains geraniol oil, peppermint oil, and thyme oil and is perfect for cats that have sensitive skin. Some users say it does not effectively kill fleas, but rather repel them. However, it lasts for three months, is water resistant and comes at a very affordable price.

  • Non-toxic
  • Great for cats with sensitive skin
  • Eco-friendly
  • Uses natural ingredients
  • Adjustable size
  • Lasts only 3 months
  • No breakaway collar
  • User claim not very effective for killing existing fleas


7.Hartz UltraGuard

Hartz UltraGuard Flea and Tick Cat and Kitten Collar

One of the best cat flea collars for people who do not want to compromise on price or quality is the Hartz UltraGuard Flea and Tick Cat and Kitten Collar. The collar repels and kills fleas and their eggs for 7 months and exudes a soothing smell. Although it is water-resistant, it should be removed when giving your cat a bath. The great thing about it is its affordable price, since cats lose their collars all the time when they are climbing trees.

  • Non-toxic
  • Lasts 7 months
  • Pleasant smell
  • Breakaway feature
  • Can be fitted on kitten 12 weeks old
  • Contains chemicals
  • Need to take it off during baths


Types of Insecticide in Flea Collars for Cats

There are two main types of insecticides used in flea collars for cats: solid and liquid types

Solid Insecticide

In its solid state, insecticide and resin are blended together, and the medication is discharged when the collar rubs over the fur of the cat. Depending on what type of insecticide is used, it may either be absorbed by the cat’s skin or be dispersed on top. For the dispersed insecticide, a flea dies on contact. But for the absorption type, the flea has to bite the skin for the insecticide to take effect.

Liquid Insecticide

The liquid type of insecticide is spread as a gas. This type of insecticide is more effective in repelling fleas rather than killing them because the gas will only kill fleas that are near the collar.

What Are The Features A Flea Collar For Cats Should Have?

The best flea collar for cats should have a variety of different features.


Some of the common active ingredients in flea collars include fipronil, methoprene, imidacloprid, permethrin, pyriproxyfen, deltamethrin, moxidectin, amitraz, and propoxur and since they contain chemicals, they can be toxic to cats if ingested. Natural flea collars for cats contain essential oils; however, some natural oils can also be poisonous for cats. The chemical ingredient, Tetrachlorvinphos (TCVP), should also be avoided since it is not just a pesticide but a potent neurotoxin, which is harmful not just for cats but for humans as well. Some research says it is also a potential carcinogenic.

Effective Protection

You should never compromise quality for price. The best flea collars for cats protect against not just fleas but ticks and mosquitoes as well. Make sure the flea collar for your cats is not just effective in killing the insects but also repelling them. If new fleas are repelled quickly, they will not have a chance to bite your pet. Then there are adulticides which are only effective in killing adult fleas, like imidacloprid and fipronil. Insect Growth Regulators are also effective chemicals that can retard the development of larvae and eggs and render adult fleas sterile so that their life cycle is disrupted.


Many flea collars for cats come with adjustable sizes that can be snipped off the ends so that they can snugly and comfortably fit your cat. If the flea collar is too tight, your cat’s skin may be abraded, and it may feel trapped. If it is too loose, the cat can chew it off.

Safety Release

Good quality flea collars for cats come with a breakaway feature that allows your pet to escape if the collar gets snagged on a tree. This type of collar gives easily and prevents your pet from strangulation if it becomes entangled.

Protection Period

Some flea collars offer protection for 6 to 8 months, which means their owner remain hassle free for over half a year. Then there are some collars which need to be replaced every three months. Opt for a long-lasting collar if your cat doesn’t like its collar being replaced.

Age of the Cat

Many flea collars come with potent chemicals, which, although pretty safe for adult cats can be harmful to kittens. If you are buying a collar that says it is adjustable for kittens as well, make sure it does not have any potential dangerous medications in it. This warning also applies to cats who are sensitive to low doses of chemicals.

Allergic Reaction

Both chemical and natural ingredients in a flea collar can cause allergies in your cat. If you are using a new collar, pay attention to your cat for the next two days. If it shows signs of irritation or scratches itself too much, take it off and ask your vet for recommendations.

Bad Odor

Some flea collars for cats may release slight to moderate odor. A cat’s smell is more acute than a human’s, and the slightest unpleasant scent can be a very miserable experience for it. Opt for flea collars that are odorless or at least have scents that are not unpleasant for a cat.


There are a few brands that sell completely waterproof flea collars for cats that can be worn during bathing. However, many brands offer water-resistant flea collar that won’t stop working if your cat is out in the rain but are not recommended to be worn during baths. Getting a waterproof collar can get rid of this concern.

What Are The Dangers Of Fleas On Cats

No good pet owner likes to see his or her cat scratching itself to death. However, fleas can cause more than just an annoyance for cats; they can result in serious diseases, like tapeworm infection, anemia, and dermatitis, all of which can infect humans as well. Below are some conditions that fleas can cause.


What’s so horrific about tapeworm is that they can be transmitted to humans if fleas accidentally get into your food. Tapeworm infection in cats is similar to humans and can result in loss of appetite, stomach ache, diarrhea, nausea, and inexplicable weight loss.


Fleas can transmit bacteria called Yersinia pestis to your cat. Your cat can get this by ingesting infected rodents or from fleas that previously used rodents as host. Such fleas can bite humans and infect them with the bubonic, septicemic or pneumonic plague.

Murine Typhus

Murine typhus is caused by infected fleas and can be transmitted to humans if they come in contact with the insect’s feces. The symptoms include fever and chills, vomiting, nausea, loss of appetite, cough, and rashes


Flea anemia is a serious condition in cats which result in restlessness, weight loss, loss of appetite, dark, sticky stools, rapid, uneven pulse and lethargy in cats. This occurs in cats that are heavily infested with fleas.

7 Best Flea Collar For Cats of 2019

How To Check Your Cat For Fleas

We recommend that pet owners check their cats for fleas every few weeks before the infestation takes hold. Cats are able to groom themselves perfectly so it may be difficult for you to know the symptoms.

To check for fleas in your cat’s coat, use a flea comb to brush your pet’s hair, check for drowned fleas in the bath water and keep a close eye on your cat for any signs of excessive scratching and biting.

Adult fleas also leave behind dark spots of digested blood. While brushing your cat’s fur, place a towel beneath it and see if any dark flecks fell off. If you put these flecks in water, they will turn red, indicating a flea infestation.

Once you detect an outbreak, the best thing you can do is to react quickly. Flea collars for cats are a viable option, but you should also support it with other, more effective options like anti-flea shampoos and medicated sprays.

FAQsFrequently Asked Questions

How do flea collars for cats work?

Flea collars are a low-cost way to fight off a flea infestation. These collars contain insecticides that are slowly distributed throughout the hair of the cat or are absorbed by the animal’s skin. When fleas come in contact with the insecticide or bite your cat, they are killed or repelled.

How effective are flea collars for cats?

Flea collars provide effective protection from fleas, although they should be supplemented with other flea-fighting treatment options, like a topical medication or a flea shampoo, as well. They work best as a preventive measure. Some of the best flea collars for cats can kill existing fleas within 24 hours and work for 6-8 months.

However, their efficiency reduces due to repeated exposure to water. Even waterproof brands may weaken if they are doused in water too many times. Then there are several different kinds of insecticides that target fleas at a certain development stage. Adulticides kill only adult biting fleas while IGRs sterilize eggs and larvae of the fleas.

What is the best flea treatment for cats?

If your cat has an infestation, you need to first give her a bath with an effective flea shampoo. After that, you need to comb its fur to pull out any remaining fleas and add a topical medicated application to an area where you saw the biggest outbreak. Fit your cat with a good flea collar; our recommended choice is Bayer Seresto Flea and Tick Collar. You can also administer oral medication to your cat on the vet’s recommendation.

Are flea collars safe for cats and humans?

Flea collars are generally considered safe, but since many of them contain chemical ingredients, you need to take some precautions. Most collars come with a warning that they should not be touched by children as some chemicals can be more toxic to humans than others. Make sure you do not use low-quality flea collars for cats that contain dangerous toxins or potentially poisonous essential oils. If your cat suffers from irritation, redness and hair loss after you fitted it with a collar, take it off and get it to the vet for treatment.

The Takeaway

Flea collars for cats are a feasible option if you suspect an outbreak. However, the fleas that infest your cat make up only a fraction of the flea population. Only 5% of fleas are adults, 10% are pupae, 35% are larvae, and 50% are eggs. If you want to completely eradicate fleas from your home, make sure you keep your pets, house, and yard clean and groomed at all times.

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