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The 9 Best Flea Collars For Small Dogs

Fleas are a nuisance that must be addressed, particularly if you have a little dog companion.

With so many alternatives on the market, choosing a flea collar that is both safe and effective may seem like a struggle for dog owners.

When looking for flea collars, pet owners have to think about a number of things, such as the collar's parts, whether it uses all-natural ingredients, and how well it works.

Based on user reviews, BestForPets' (bestforpets.org) post will list the best flea collars for small dogs to help you make a safe and well-informed purchase.


Adams Flea and Tick Collar – Overall Winner

This Adams Flea and Tick Collar is appropriate for toy and small dog types and provides protection for up to seven months. This collar is odorless, kills fleas and ticks immediately, and is simple to apply to your dog.

It is water-resistant, so it will retain its efficacy if it becomes wet. In addition to killing fleas and ticks, it also eliminates flea eggs, tick larvae, and tick nymphs.

The tiny size is intended for little dogs, and surplus may be clipped after application. This collar may cause irritation in certain dogs; if irritation occurs, remove and discard the collar immediately.

This collar provides seven months of protection at a cheap price, making it the finest overall flea collar for tiny dogs.


  • Reasonable pricing
  • 7 months of coverage
  • Kills fleas, ticks, eggs, tick larvae, and tick nymphs
  • Water-resistant
  • Odorless


  • Possible irritant for certain dogs

Best Value Hartz UltraGuard Pro Reflective Flea & Tick Collar

The Hartz UltraGuard Pro Reflecting Flea & Tick Collar offers seven months of whole body protection. It eliminates fleas from your dog by killing flea eggs and interrupting their reproductive cycle.

It is suitable for all breed sizes older than 12 weeks and water-resistant. For nighttime safety, this collar incorporates a Reflect-X Shield that reflects direct light for up to 450 feet. This collar offers protection against fleas, flea eggs, and ticks.

This collar may not be beneficial for all dogs; thus, be on the lookout for irritation. Some customers may also find the odor to be unpleasant. Nevertheless, for the price, this collar is the finest flea collar.


  • 7 months of coverage
  • For usage in dogs of all sizes
  • Water-resistant
  • Contains a reflective nighttime shield
  • Made in America


  • Possible pungent odor

Seresto Flea & Tick Collar – The Choice of Champions

The Seresto Flea and Tick Collar gives protection against fleas and ticks for up to eight months. This collar is approved by veterinarians and is suitable for dogs older than 7 weeks.

The collar is readily adjusted, repels fleas 24 hours after application, and kills ticks 48 hours after application. It also eliminates flea and tick re-infestation within two and six hours, respectively. It offers a rapid release for easy removal and is odorless and non-greasy. Moreover, it is water-resistant.

Certain buyers claim that the collar does not function for the full eight-month period, and some dogs may claw at it. This pricey collar is only appropriate for dogs weighing up to 18 pounds.


  • Provides eight months of coverage
  • Veterinarian-recommended
  • Water-resistant
  • Rapid-release function
  • Odorless and greasy-free


  • Dont work for eight months
  • Expensive

The Best Missona Flea and Tick Collar for Puppies

The Missona Flea and Tick Collar is approved by veterinarians and is an all-natural alternative, making it a perfect option for pups with sensitive skin.

It contains essential oils derived from plants, including citronella, clove, and peppermint, which repel fleas and ticks for eight months.

This collar fits many dog breeds and is readily adjustable, so you may modify it as your puppy develops (they grow quickly!). It is water-resistant and inexpensive.

While the usage of natural oils is a safer alternative, some users claim that the collar is ineffective. However, some users assert that the collar performs well.

Users also say that the collar is effective against fleas but not ticks. Due to the low price, we believe it’s worth a shot, particularly for pups with sensitive skin.


  • Contains only natural components
  • Provides eight months of coverage
  • Excellent choice for canines
  • Water-resistant
  • Affordable


  • May not be effective against ticks

Shengkou Insect Protection Collar

This two-pack of flea and tick collars from Shengkou has only natural components, making them a safer alternative.

Cinnamon, citronella, garlic, lemongrass, and thyme oils are used. This collar protects against fleas, ticks, lice, and mosquitoes in addition to fleas and ticks.

This bundle of collars is waterproof and offers 12 months of protection (6 months each collar). These collars also have a safety breakpoint that releases in the event that your dog becomes entangled on an item, such as a tree limb.

These collars have a citronella odor that lasts two to three weeks, and if the odor is too strong, you may wait to apply it to your dog until the odor subsides.

Some customers report the collar is difficult to put on a dog, and although being waterproof, they claim it may become useless when wet.


  • 100% pure components
  • Six months of coverage per collar
  • Safe, breakpoint design
  • Waterproof
  • Available in packs of two


  • May have strong citronella fragrance
  • May be difficult to don
  • May not function when damp

Flea and Tick Collar by JMXU

The JMXU Flea and Tick Collar fits all dog sizes and continually releases low amounts of harmless chemicals to battle fleas and ticks.

The collar is adjustable, however it only suits dogs weighing 18 pounds or more, therefore it is unsuitable for toy types but should be suitable for small breeds.

This collar is effective against fleas, flea eggs, ticks, and mosquitoes. The inside surface of the collar is slick, providing for wearer comfort, and it includes a dual buckle mechanism that facilitates installation.

It is waterproof and suits canines older than 7 weeks. Some consumers claim the collar is only effective for around three months, and just 4% of the product is comprised of natural substances. Cinnamon, vanilla, lemongrass, and thyme oil are among the all-natural components.


  • Continuously releases harmless substances at low concentrations
  • Includes all-natural oils
  • Smooth and comfy collar
  • Waterproof


  • Only suits dogs over 18 pounds
  • May not work for the whole eight months
  • Contains less than 4% natural components.

Flea and Tick Collar, Monipgu

The Monipgu Flea and Tick Collar is another another product that utilizes all-natural oils for a safer alternative, particularly if your dog has skin allergies.

This collar destroys ticks, fleas, flea eggs, and flea larvae. It is waterproof and suitable for dogs of all sizes. It is also readily adjusted and provides eight months of coverage.

The collar is reasonably priced, comes in a bundle of two with a flea comb, and includes an instruction booklet. It has a rapid release, and customer care will respond within 24 hours if you are not happy with the collar.

Even though they claim “all-natural” components, this product does not reveal all of its contents until you purchase it and can read the label inside, so approach with care. Also, the collar may be difficult to adjust.


  • 8 months of coverage
  • Includes a flea comb
  • Rapid release


  • All ingredients are concealed until after purchase.
  • Could be challenging to adapt to

The Fipukin Tick and Flea Collar

The eight-month-lasting Fipukin Flea and Tick Collar was developed by veterinarians. This two-pack has a flea comb, a tick removal device, and a lice repellent. It is waterproof and readily adjustable to provide a snug fit.

This collar emits continually effective natural plant oils, and a percentage of the company’s profits are donated to the Animal Welfare Association. It is also designed with an emergency breakpoint.

Some users claim the collar is ineffective, and skin responses have been reported; thus, proceed with care. It may also have a strong chemical odor.


  • Equipped with a flea comb and tick removal device.
  • Donations made to Animal Welfare Association
  • Design for emergency breakpoints
  • Waterproof


  • Not effective on all dogs
  • Possible skin response
  • Possible strong chemical odor

TevraPet Activate II Tick and Flea Collar

The TevraPet Activate II Flea & Tick Collar provides six months of protection for dogs of all sizes. The collar is entirely adjustable and eliminates fleas and ticks on contact.

Additionally, it eliminates flea eggs, flea larvae, ticks, and mosquitoes. This collar is veterinarian-approved and begins functioning within 24 hours.

Within one year of purchase, the organization will return your money if you are not totally happy. These collars are American-made.

The ineffectiveness of this collar to remove ticks is a typical complaint, and some dogs may have unpleasant side effects, such as diarrhea, skin rashes, and shaking.


  • Vet-approved
  • Begins functioning within 24 hours
  • Complete refund if unsatisfied
  • Fully flexible collar


  • May not be effective against ticks
  • Possible harmful effects for some dogs

Buyer's Guide

The selection of a flea collar is crucial for the health of your little dog, and one size does not suit all. Certain considerations must be examined before to making a purchase, and we will discuss those elements in our buyer’s guide.

How Flea Collars Function

Flea collars operate by releasing chemicals into the skin and hair oils of your dog. Flea collars are intended to continually release chemicals that provide protection for up to six months.

Flea collars may be a more cost-effective alternative to topical treatments, and there is no need to remember to provide topical treatments weekly.

These collars allow you to forget about your dog for many months. Consider, however, that some flea collars may produce unpleasant reactions in certain dogs, including skin irritation, vomiting, diarrhea, shaking, and even seizures. Before buying a flea collar, we suggest checking your physician to guarantee its safety.

Natural versus Synthetic Ingredients

Some flea collars boast that they include exclusively natural components, as opposed to synthetic ones. All-natural flea collars employ essential oils, however not all essential oils are good for your little dog.

Some natural flea collars, for instance, include citronella oils, which are poisonous if consumed. Ensure that the citronella oil is on the inside of the collar so your dog cannot lick it off when considering a collar containing citronella.

Water-Resistant Flea Collars

All of the flea collars listed above are water-resistant, which is an essential characteristic to consider if your dog enjoys swimming. Keep in mind that extended exposure to water may render the collar ineffective.


The flea collar you purchase for your dog must be comfy. Most collars are readily adjusted, but the collar around your dog’s neck should be too tight. As a general guideline, you should be able to fit two fingers between the collar and your dog’s neck.

The collar should also include a breakpoint design, which means it will release if your dog becomes entangled in an item that might cause choking.


The majority of the flea collars on our list also protect against flea eggs, larvae, ticks, lice, and mosquitoes. Some also interrupt the life cycle to inhibit flea reproduction. Before acquiring a flea collar, it is essential to evaluate its effectiveness to guarantee that it will be effective for the intended purpose.


1. How do collars for fleas work?

Flea collars function by releasing a constant, steady dose of medication into the animal’s dermis (coat and skin), which kills and repels fleas and ticks on contact. It permeates the whole dermis and remains effective for a certain period of weeks or months.

2. Are collars for fleas safe?

Flea collars are generally safe, however they are not ideal for all pets. They are normally only suggested for pups 12 weeks or older, and should not be administered to elderly, pregnant, or lactating dogs.

In addition, many insecticides might mix with other drugs your dog may be receiving; thus, you should speak with your dog’s veterinarian before applying a new flea collar.

3. Do flea collars for dogs work on cats?

According to us, some flea collars may be used on cats, but only if they are explicitly designated for felines. Some of the IGRs (insect growth regulators) in dog collars are neurotoxic to cats.

4. How long are flea collars effective?

Most brands have a three- to eight-month shelf life, so check the box before making a purchase. Always replace your dog’s flea collar when the manufacturer-recommended time period has passed. You may also choose to replace your dog’s collar if you see a decline in its efficacy.

5. Flea collars kill fleas, yes.

Yes, albeit it may take time. Flea collars often begin releasing chemicals as soon as they are put on a dog, and adult fleas should be eliminated within a few days. (This may vary per product, so see the product’s package for more specific information.) Flea eggs and larvae may still be present on your pet or in your house for up to 30 days after an infestation has been cleared.


BestForPets (bestforpets.org) hopes that our evaluations of the best flea collars for small dogs will assist you in choosing an educated and safe purchase.

The Adams Flea and Tick collar offers seven months of protection, kills fleas and ticks instantaneously, destroys flea eggs, tick larvae, and tick nymphs, and is built for tiny dogs, making it the best flea collar overall.

Hartz UltraGuard Pro Reflecting Flea & Tick Collar offers seven months of protection, a reflecting shield, interrupts the reproduction cycle, and is water resistant for the greatest value.

Always contact your veterinarian to determine the safest solution for your little dog.

Author Image

Dr. Deborah Fletcher

Deborah R. Fletcher, DVM, is a skilled veterinarian with more than 15 years of experience dealing with companion and exotic animals. She has experience caring for a variety of animals, including household cats and dogs, reptiles, birds of prey, and even primates. Dr. Fletcher is a valuable part of the BestForPets team, where she contributes to their aim of providing pets and their owners with the finest possible treatment and services.

Veterinarian (DVM) Dr. Deborah Fletcher


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