Best Flea Collar for Cats Reviews – Safest Collars for Cats to Kill Fleas and Natural Flea Collars for Kittens and Cats

A tick or flea infestation issue can be a menace for both you and your furry feline friend. Most cat owners—especially new ones—assume that fleas are a dog’s worst nightmare, but your feline companion is just as vulnerable to these ectoparasites. Using preventive treatments such as sprays and shampoos is effective when done in a timely manner, but flea collars work in the background and whenever your cat ventures in the great outdoors. With the seemingly endless selection of just about anything, even the task of picking the best flea collar for cats (and knowing which are the best cat flea collar brands) can seem complex. That’s why we’ve explored this space, compared features, and have narrowed down on the five best options that your feline will simply love you for.

While we only included the safest flea collar for cats in this review, it is extremely important to pay attention to the age and weight of your cat. Almost all chemical-based flea collars (some of which kill eggs and larvae too) can only be used when kittens reach 12 weeks old. You can get a natural flea collar for cats that uses essential oils for kittens, but you should still check with your vet — even if the package says safe for all ages. It is also important to note that most natural flea collars will only repel pests, not kill them.

So, what do you do if you have a kitten who is infested with fleas? The first thing to do is give them a bath. Dawn dish soap is a safe option. You can also use Espree Kitten Shampoo which is made from organically grown aloe vera or Burts Bees Tearless Kitten Shampoo with buttermilk. Next, you will want to use a fine toothed flea comb for cats to remove any remaining fleas, eggs, or debris. Finally, if your kitten weighs at least 1.5 pounds, you can apply a topical flea treatment to their skin. We have showcased ones that are good for kittens below.

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Good For
Cat Age
Our Top Choice
Hartz UltraGuard Plus Cat Collar
Hartz, for over 90 years, has been providing superior-quality pet products such as training aids, treats, and tick and flea control products.
Water-resistant. Can kill and prevent flea eggs up to 7 months. For cats and kittens at least 12 weeks. Rids fleas and ticks.
Some customers complained that the collar left chemical burns on their cats.
Diffusing substance/breakaway
Fleas, ticks, eggs & larvae
Cats 12 weeks and older
7 months
Best Value
Only Natural Pet EasyDefense Cat Collar
With a mission to give you and your pet more time together, Only Natural Pet provides only natural ingredient-based products that are developed based on scientific evidence.
Water-resistant. Can last up to 4 months. Can be used for all cat ages. All-natural ingredients.
May have a strong, unpleasant smell. Repels but doesn't kill.
Diffusing substance
Fleas, ticks & mosquitos
Geraniol, peppermint/thyme oil
All ages (check with vet)
4 months
Bayer Seresto Flea and Tick Collar for Cat
Bayer, parent of Seresto, is a chemical company founded over 150 years ago, and is best known for the painkiller aspirin.
Recommended by veterinarians. 8-month protection. Non-greasy. No strong smell. Prevents in 48 hours.
Great for repelling fleas, but may not work as great for smaller cats.
Low dose release
Repels fleas & ticks
Imidacloprid and Flumethrin
Cats 10 weeks and older
8 months
ALZOO Natural Repellent Cat Flea Collar
Brought to you by AB7, ALZOO is a laboratory-tested lineup of products that keep your pet pest-free.
Environmentally-friendly. 4-month protection. No phthalate or PVC. Eliminates fleas, ticks, and lice.
May not be long enough for some big cats.
Diffusing substance
Repels fleas, ticks, mites
Geraniol, citronella oil
Cats 4 months and older
4 months
BioSpot Active Care Flea and Tick Collar for Cats
BioSpot, although new to the pet product space, has garnered a surge of appeal for its high-quality range of products.
7-month protection for cats 12 weeks+. Water-resistant breakaway design. Kills fleas and ticks, with their larvae and eggs.
A bit on the heavier side, perhaps due to its breakaway design.
Diffusing substance/breakaway
Repels fleas, ticks, mosquitos
Over 12 weeks old
7 months

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What Is the Safest Flea Collar for Cats? Read Our Flea Collar for Cats Reviews!

Although ticks and fleas are different in some ways, they are birds of the same feather—smart and highly successful at what they do. The best flea collars for cats will help eradicate most of the fleas and prevent them from returning, but it is wise to also use other topical treatments regularly. Using a cat flea collar, you can rest assured that those fleas are slowly getting poisoned and will soon be gone. Now that you’ve read our flea collars for cats buying guide and know what’s best for your little companion, let’s get right to the top five picks.

Related: Things to Know When You Bring a New Kitten or Cat Home
Our Top Choice
The Hartz UltraGuard Plus, Flea & Tick, Cat Collar is a great way to prevent your cat from ticks and fleas, and can last up to 7 months. If your kitty isn't good with collars, you can get the Hartz UltraGuard Flea and Tick Topical Prevention for cats.

Hartz UltraGuard Plus, Flea & Tick Cat Collar for Cats & Kittens - 7 Month Protection


Hartz is one of the highly trusted names when it comes to a wide range of pet products and has been ever since its inception over 90 years ago. The company understands how important your pet is to you, and hence manufactures products that are safe for them and will keep them healthy for years to come. Hartz has a massive portfolio of products for several different types of pets including dogs, cats, small animals, reptiles, and even fish.

The Hartz UltraGuard Plus Cat Collar is a highly effective flea and tick collar for cats, and is safe to use on those at least 12 weeks old. This water-resistant collar is designed to do so much more than kill already-active fleas and ticks; it can also rid your cat of their eggs for a total of seven months. The collar weighs just 0.53 ounces, so your furry feline friend will hardly know it’s there. It’s a safe, chemical-based collar with proven ingredients including tetrachlorvinphos and (S)-methoprene.

Best Value
The Only Natural Pet EasyDefense Flea & Tick Cat Collar is designed to prevent fleas and ticks for up to 3 months, all without the use of artificial or harmful ingredients. If your cat already has a case of fleas and ticks, the Only Natural Pet EasyDefense All-in-One Flea Remedy is a great solution and can be safely applied.

Only Natural Pet EasyDefense Flea & Tick Cat Collar - Available in 1 and 4 Pack


Only Natural Pet is a family-owned business that provides superior-quality pet products, all infused with natural ingredients. Each product is veterinarian-formulated and approved through a dedicated board of directors, so regardless of which product you buy from its stable of products—rest assured it is highly effective and 100 percent safe for your pet.

The Only Natural Pet EasyDefense Flea & Tick Cat Collar is backed by scientific research, and tested to high-quality standards to provide your cat with a natural treatment against ticks and fleas. It’s water-resistant, offers long-lasting protection for up to 4 months, and contains no harmful chemicals or pesticides. Safe to use on all ages of cats, this flea collar is backed by a 100 percent guarantee, so you can buy with confidence knowing that it’s what’s good for your furry friend.

The Bayer Seresto Flea and Tick Collar for Cat is a highly effective flea and tick collar that kills and prevents quickly. However, if the infestation is out of control, you may want to try a topical treatment such as the Bayer Advantage II Flea Control Treatment.

Bayer Seresto Flea and Tick Collar for Cats - 8 Month Flea and Tick Collar for Cats


Bayer is one of the biggest, oldest, and most highly reputed name in the pharmaceutical space and Seresto is just one of its many highly trusted offerings. Founded over 150 years ago, and headquarted in Germany, Bayer is the pioneer of aspiring and today has several leading brands under its belt including Dr. Scholl's, Coppertone, and Claritin.

The Seresto Flea and Tick Collar for Cat is designed for cats of all weights and sizes, and offers a long-lasting 8 months of protection. It comes veterinarian-recommended, non-greasy, and with no strong smells, so it won’t bother you or your cat. It’s highly effective and works it magic within 24 hours of application and reinfesting fleas within 2 hours.

Deemed safe to use with a great blend of ingredients, the Seresto collar provides a patented double layer of protection—one is a ratchet release mechanism that causes the collar to widen, and the second is a predetermined breaking point. Further, its active ingredients used are released in small doses so it’s safe to use within your home.

The ALZOO Natural Repellent Flea & Tick Collar for Cats contains only natural ingredients and is highly effective. This natural flea collar gets its repellant power from geraniol & citronella oil. For a longer lasting safe flea collar for cats, this one from ShengKou offers up to 12 months protection. It uses plant based ingredients - citronella oil, cinnamon oil, garlic oil, lemongrass oil, thyme oil.

ALZOO Natural Repellent Flea & Tick Collar for Cats for 4 Months Protection


AB7 has been a market leader for over 30 years as it’s sold pet products to several pleased customers, and backed by this wealth of experience presents you with Alzoo. This laboratory-tested and all-natural ingredient-based range of products is proven highly effective and delivers unmatched protection for several months.

The Alzoo Natural Repellant Flea & Tick Collar for Cats is infused with natural-based active ingredients including geraniol, citronella oil, and cinnamon oil, and offers 4 months of protection against fleas, ticks, and lice. It’s environmentally-friendly, and it’s recommended that you keep your cat in it for an additional hour each day. Why not give this collar a try—your cat may thank you!

The BioSpot Active Care Flea and Tick Collar for Cats is highly effective and is only to be used for cats over 12 weeks old. Have an infestation and need to give your furry friend a bath? BioSpot Active Care Flea and Tick Shampoo is good for cats and kittens over 12 weeks old.

BioSpot Active Care Flea and Tick Collar for Cats with 7 Months Protection


BioSpot is fairly new to the pet products space, but has rather quickly received a surge of appreciation, mostly due to its high-quality products. The company has a limited range of products for both dogs and cats, including flea and tick prevention solutions.

The BioSpot Active Care Flea and Tick Collar for Cats measures 13 inches, making it a great fit for most cats. It offers an extensive 7 months of protection and features a breakaway design for added safety of your cat. Further, this tick and flea collar is to be used with cats above 12 weeks old, and can be used alongside other topical ointments for best results. If you need a versatile flea and tick collar, this may be just the thing for you and your cat!

Safe Flea Collars for Cats Guide – Natural Flea Repellant Cat Collars vs Flea Collar for Cats that Kill Eggs and Larvae Too

Just like dog flea collars and dog flea treatments, flea collars for cats can be extremely effective as long as you choose the best one. When affected by ticks and fleas, experts recommend keeping your cat indoors because your yard is already exposed to the little buggers, and preferably in a sturdy cat cage if you have carpets.

There are some things to consider before you head out shopping for the best flea collar for your cat, such as the age of your cat, length of the device, and duration of protection. You may also want to consider getting a water-resistant cat flea collar so that your cat is safe regardless of the weather conditions they wander off in.

Video: How to Prevent and Treat Your Cat From Fleas

Easy Way to Control Fleas On Your Cat. | Courtesy of Relax My Cat - Relaxing Music for Cats

Prices of cat flea collars can vary considerably, and mostly depend on the features they come with. Cheap flea collars, for the most part, may only offer a month or so of protection, and are ideal only if your pet has been mildly affected by these parasites.

Apart from long-lasting protection, high-quality cat flea collars also ring in with some great features such as adjustable fit, breakaway design, and water resistance. While dogs don’t mind wearing collars, most cats don’t feel the same, and as a result try hard to break free from it. This is why paying the extra few $$$ for a breakaway cat flea collar makes sense, as it considerably reduces the chances of collar-related accidents.


Flea collars for cats are available with several different features, so you should ideally choose one that works best for your pet rather than skimping out on the price. Chemical-free collars, also known as natural cat flea collars, are also available. Just as the name would suggest, they use natural ingredients such as rosemary oil.

Consider the following features for superior protection against ticks and fleas:

  • Age of cat – owing to the fact that felines have different strengths of immunity, it is important to check the age requirements of the respective cat flea collar.
  • Length of collar – just to be sure that the collar fits like a hand in glove, it’s a good idea to measure the circumference of your cat’s neck before buying one.
  • Parasite-specific collar – in the event that you know 100% what type of parasite is affecting your cat, you can buy a collar that’s designed exclusively for that issue.
  • Flea life cycle-specific – some cat flea collars are designed to target parasites at particular life cycles, and can possibly prevent re-infestation.
  • Duration of protection – flea collars may be good for one month, while others offer up to a year or more of protection.
  • Water-resistant – even if you live in an almost dry city such as Phoenix or Las Vegas, you never know when your cat can get wet, which can affect the chemicals within the flea collar.
Construction and Design

Cat flea collars are mostly crafted of plastic and are infused with ingredients, whether natural or chemical. Regardless of which type you buy, it’s important that you fit it properly so that it’s nice and snug with little excess to avoid having your pet bite into it and ingest the ingredients. The market now has flea collars made of natural oils containing rosemary and lavender that are known to repel ticks and fleas.

These collars work by distributing throughout your cat’s body, which kills the parasites that have already taken up residence and prevents infestation. Studies indicate that the best flea collars for cats can reduce fleas by over 95 percent and ticks by 90 percent over a period of roughly 6 months. There are several cat flea collars that are safe to use on kittens too—they just have safer ingredients than those for their older cousins.

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What’s Going On In Your Cat’s Head. | Courtesy of BRIGHT SIDE
Performance and Ease of Use

Flea collars for cats mostly come in standard sizes, but there are also long ones available so that you can customize it to fit your larger cat. Although the collars themselves do the job well, you can currently use topical flea control products, preferably sold by the same brand.

Further, some flea collars can irritate your cat’s neck and cause hair loss among other things, while others are extremely comfortable—so much so that your furry friend won’t even mind that it’s there. This is an important feature to watch out for.

Most cat flea collars are efficient at killing parasites, without causing any harm to your pets, but it’s a good idea to keep these insecticide-filled devices away from children just as you would with any insecticide.

Get the Best Flea Collar For Cats of 2023!

You need to take action the moment you know your cat is plagued with ticks and fleas, and now that we’ve revealed what the five best cat flea collars are, you can do it with just a few clicks.

Our Top Choice
Hartz UltraGuard Plus Cat Collar
Best Value
Only Natural Pet EasyDefense Cat Collar
Bayer Seresto Flea and Tick Collar for Cat
ALZOO Natural Repellent Cat Flea Collar
BioSpot Active Care Flea and Tick Collar for Cats

Flea Collar For Cats FAQs

What is the best flea collar for cats?
The best flea collar for cats should be age-appropriate since cats tend to have different diameters. Because of that, the flea collar should, of necessity, be of the right length and protect your cat for longer. To get the exact flea collar, you may want to narrow it down to the specific parasite. Since water can affect the chemicals in the flea collar, it should be water-resistant at the very least.
Where to buy a flea collar for cats?
We recommend that you buy a flea collar from Amazon and enjoy a wider variety of products and the best prices. If you are looking for a flea collar for cats to buy, we have reviewed some of the best.
What is the most potent flea collar for cats?
The most potent flea collar for cats is one that can effectively get rid of the pests afflicting your cat. So, it’s always important to check if a specific flea collar can work for your cat. You can check out the products we have featured in this review to see if you get a good fit for your cat.