Best Dog Flea Collars
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Discover the Top Rated Flea Collars Every Dog Owner Needs for Spring
Buying the right flea collar is important for keeping your dog safe and healthy. After reading thousands of reviews and talking to dog owners, we've determined the best flea collar for your dog.
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Overall Best Flea Collar for Dogs
What Dogs Love:
  • Keeps fleas at bay for eight months
What Humans Love:
  • Odorless
  • Effective active ingredients
Our Thoughts:

Some people prefer the peace of mind of buying from a big brand, even if it costs a little more. Since it comes from health giant Bayer, you can trust this flea collar to keep your dog flea-free. It also works against ticks and lice. This particular collar is designed for small dogs up to 18 pounds, but you can buy the same collar for large dogs, too.
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Some people prefer the peace of mind of buying from a big brand, even if it costs a little more. Since it comes from health giant Bayer, you can trust this flea collar to keep your dog flea-free. It also works against ticks and lice. This particular collar is designed for small dogs up to 18 pounds, but you can buy the same collar for large dogs, too.

The 4.4 rating on Amazon shows this is an effective option that most buyers are pleased with. You'll receive two collars to a pack, giving a total of 16 months of flea and tick protection.
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What Dogs Love:

This effective, scent-free flea collar will keep your dog free of critters for up to eight months without any noticeable odor.

What Humans Love:

Produced by health giant Bayer, Seresto flea collars are trusted by dog owners everywhere, plus this purchase comes in a 2-pack.

Our Thoughts:

Some people prefer the peace of mind of buying from a big brand, even if it costs a little more. Since it comes from hea...

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Some people prefer the peace of mind of buying from a big brand, even if it costs a little more. Since it comes from health giant Bayer, you can trust this flea collar to keep your dog flea-free. It also works against ticks and lice. This particular collar is designed for small dogs up to 18 pounds, but you can buy the same collar for large dogs, too.

The 4.4 rating on Amazon shows this is an effective option that most buyers are pleased with. You'll receive two collars to a pack, giving a total of 16 months of flea and tick protection.
Our Other Favorite
What Dogs Love:
  • Lightweight
  • No need for sprays or tablets
What Humans Love:
  • No pesticides
  • Put it on your dog and forget about it
Our Thoughts:

Some people prefer the peace of mind of buying from a big brand, even if it costs a little more. Since it comes from hea...

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This is another all-natural flea collar, which is ideal for dogs with insecticide allergies or for anyone who prefers to use fewer harsh chemicals on their dogs. The 4-star rating is pretty high, although it appears to work for some dogs but not others.
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What Humans Love:
  • No pesticides
  • Put it on your dog and forget about it
What Dogs Love:
  • Lightweight
  • No need for sprays or tablets
Our Thoughts:

This is another all-natural flea collar, which is ideal for dogs with insecticide allergies or for anyone who prefers to...

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This is another all-natural flea collar, which is ideal for dogs with insecticide allergies or for anyone who prefers to use fewer harsh chemicals on their dogs. The 4-star rating is pretty high, although it appears to work for some dogs but not others.
What Dogs Love:
  • No more flea bites
  • Comfortable to wear
What Humans Love:
  • Nongreasy
  • Durable
  • Long-lasting
Our Thoughts:

If you liked the look of our top pick but have a dog bigger than 18 pounds, this is the option for you. It contains all the same active ingredients but in larger concentrations to suit bigger dogs. This pack of two collars offers eight months of protection each from fleas, ticks, and lice.

The active ingredients work through contact, so it kil...

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If you liked the look of our top pick but have a dog bigger than 18 pounds, this is the option for you. It contains all the same active ingredients but in larger concentrations to suit bigger dogs. This pack of two collars offers eight months of protection each from fleas, ticks, and lice.

The active ingredients work through contact, so it kills any fleas, ticks, or lice on your dog; they don't need to bite before they die. Though all flea treatments can be hit or miss (as some fleas become resistant to certain chemicals), this one gets mostly good reviews with an average 4.3 rating.
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What Humans Love:
  • Nongreasy
  • Durable
  • Long-lasting
What Dogs Love:
  • No more flea bites
  • Comfortable to wear
Our Thoughts:

If you liked the look of our top pick but have a dog bigger than 18 pounds, this is the option for you. It contains all ...

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If you liked the look of our top pick but have a dog bigger than 18 pounds, this is the option for you. It contains all the same active ingredients but in larger concentrations to suit bigger dogs. This pack of two collars offers eight months of protection each from fleas, ticks, and lice.

The active ingredients work through contact, so it kills any fleas, ticks, or lice on your dog; they don't need to bite before they die. Though all flea treatments can be hit or miss (as some fleas become resistant to certain chemicals), this one gets mostly good reviews with an average 4.3 rating.
What Dogs Love:
  • Gentle on skin
What Humans Love:
  • No insecticides
  • Lasting protection
Our Thoughts:

This collar is a great choice for anyone who wants a natural flea preventative rather than a treatment for an existing flea infestation. Its particular blend of dog-safe essential oils helps to keep fleas at bay for up to eight months. It's also safe for cats if you have any felines in your household.

Although listed as one-size, it's mostly s...

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This collar is a great choice for anyone who wants a natural flea preventative rather than a treatment for an existing flea infestation. Its particular blend of dog-safe essential oils helps to keep fleas at bay for up to eight months. It's also safe for cats if you have any felines in your household.

Although listed as one-size, it's mostly suited to small and medium dogs up to 35 pounds. It's less effective than some options on our list with an overall rating of 3.7, so it's best used if you must avoid flea collars containing insecticides.
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What Humans Love:
  • No insecticides
  • Lasting protection
What Dogs Love:
  • Gentle on skin
Our Thoughts:

This collar is a great choice for anyone who wants a natural flea preventative rather than a treatment for an existing f...

Read More
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This collar is a great choice for anyone who wants a natural flea preventative rather than a treatment for an existing flea infestation. Its particular blend of dog-safe essential oils helps to keep fleas at bay for up to eight months. It's also safe for cats if you have any felines in your household.

Although listed as one-size, it's mostly suited to small and medium dogs up to 35 pounds. It's less effective than some options on our list with an overall rating of 3.7, so it's best used if you must avoid flea collars containing insecticides.
What Dogs Love:
  • No unpleasant bites from fleas and ticks
What Humans Love:
  • Long-lasting
  • No mess
Our Thoughts:

The overall quality of this flea collar for dogs is excellent. It's durable and water resistant, giving protection against fleas and ticks for up to six months. This is a one-size-fits-all collar that should fit dogs of most sizes and is suitable for dogs older than 12 weeks. The manufacturer also says it is necessary to consult a veterinarian “before usin...

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The overall quality of this flea collar for dogs is excellent. It's durable and water resistant, giving protection against fleas and ticks for up to six months. This is a one-size-fits-all collar that should fit dogs of most sizes and is suitable for dogs older than 12 weeks. The manufacturer also says it is necessary to consult a veterinarian “before using this product on debilitated, aged, pregnant, medicated, or nursing animals.”

The active ingredient, deltamethrin, is generally effective at killing fleas and ticks, but there are resistance issues with some fleas. Reviewers still give it a pretty strong rating of 4 stars.
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What Humans Love:
  • Long-lasting
  • No mess
What Dogs Love:
  • No unpleasant bites from fleas and ticks
Our Thoughts:

The overall quality of this flea collar for dogs is excellent. It's durable and water resistant, giving protection again...

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The overall quality of this flea collar for dogs is excellent. It's durable and water resistant, giving protection against fleas and ticks for up to six months. This is a one-size-fits-all collar that should fit dogs of most sizes and is suitable for dogs older than 12 weeks. The manufacturer also says it is necessary to consult a veterinarian “before using this product on debilitated, aged, pregnant, medicated, or nursing animals.”

The active ingredient, deltamethrin, is generally effective at killing fleas and ticks, but there are resistance issues with some fleas. Reviewers still give it a pretty strong rating of 4 stars.
What Dogs Love:
  • No-fuss application
What Humans Love:
  • Works on fleas and ticks
  • No maintenance
Our Thoughts:

This is a highly affordable choice, with two in a pack, which is ideal for dog owners on a tight budget. What's more, it's a popular choice from a well-known brand, so you can trust it to be safe for most dogs (although as with all medications, some dogs can have bad reactions).

This is a large-size collar that fits dogs with necks up to 26 in...

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This is a highly affordable choice, with two in a pack, which is ideal for dog owners on a tight budget. What's more, it's a popular choice from a well-known brand, so you can trust it to be safe for most dogs (although as with all medications, some dogs can have bad reactions).

This is a large-size collar that fits dogs with necks up to 26 inches in diameter. Though water-resistant, it isn't fully waterproof, so it will withstand rain showers but not swimming sessions. The collar has a 3.9 Amazon rating from reviewers.
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What Dogs Love:

The lightweight Inspector flea collar takes away the need to provide those monthly supplements your dog (probably) hates taking.

What Humans Love:

This functional flea collar works similarly as the aforementioned products, but adds an extra layer of defense against worms.

Our Thoughts:

This is a highly affordable choice, with two in a pack, which is ideal for dog owners on a tight budget. What's more, it...

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This is a highly affordable choice, with two in a pack, which is ideal for dog owners on a tight budget. What's more, it's a popular choice from a well-known brand, so you can trust it to be safe for most dogs (although as with all medications, some dogs can have bad reactions).

This is a large-size collar that fits dogs with necks up to 26 inches in diameter. Though water-resistant, it isn't fully waterproof, so it will withstand rain showers but not swimming sessions. The collar has a 3.9 Amazon rating from reviewers.
What Dogs Love:
  • No more unpleasant tick removal procedures
What Humans Love:
  • Effective
  • Durable
  • Easy to use
Our Thoughts:

While this is technically a tick collar rather than a flea collar, it still deserves an honorable mention. Sure, it won't do anything to prevent or kill fleas, but it's ideal for use if you live in or walk your dogs in tick-heavy areas and haven't had much luck with combined flea and tick treatments. It kills ticks that hop on your pet, and also it will remo...

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While this is technically a tick collar rather than a flea collar, it still deserves an honorable mention. Sure, it won't do anything to prevent or kill fleas, but it's ideal for use if you live in or walk your dogs in tick-heavy areas and haven't had much luck with combined flea and tick treatments. It kills ticks that hop on your pet, and also it will remove any existing attached ticks.

This small/medium size fits dogs with necks up to 18 inches around and up to 60 pounds in weight, but you can buy a larger 25-inch collar. It's effective for up to 90 days, and it seems to work well -- with a 4.2 rating.
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What Humans Love:
  • Effective
  • Durable
  • Easy to use
What Dogs Love:
  • No more unpleasant tick removal procedures
Our Thoughts:

While this is technically a tick collar rather than a flea collar, it still deserves an honorable mention. Sure, it won'...

Read More
+
While this is technically a tick collar rather than a flea collar, it still deserves an honorable mention. Sure, it won't do anything to prevent or kill fleas, but it's ideal for use if you live in or walk your dogs in tick-heavy areas and haven't had much luck with combined flea and tick treatments. It kills ticks that hop on your pet, and also it will remove any existing attached ticks.

This small/medium size fits dogs with necks up to 18 inches around and up to 60 pounds in weight, but you can buy a larger 25-inch collar. It's effective for up to 90 days, and it seems to work well -- with a 4.2 rating.

What Is a Flea Collar for Dogs?

A flea collar for dogs is a plastic collar that contains active ingredients to kill or prevent fleas. Many also offer protection from ticks, lice, and other biting insects. Most flea collars contain insecticides to kill fleas, but some use natural ingredients, such as essential oils.
Flea collars are alternatives to other canine flea treatments, such as spot-on treatments or flea control tablets taken orally. It’s best to consult your veterinarian about the most effective flea preventatives for your dog.

Frequently Asked Questions
Do flea collars really work?
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In general, yes. If you choose a quality flea collar, it should get rid of fleas on your dog. However, some people find varied results. This can be due to a poor quality collar or because some fleas can become resistant to certain insecticides, so if your flea treatment doesn't work, try one with different active ingredients.

How long does it take for flea collars to work?
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This varies between brands. Some work in just a couple of hours, whereas others can take a couple of weeks to work at full strength.

Are flea collars safe for dogs?
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Flea collars are safe for most dogs, but some dogs can have bad reactions (which is the case with any flea treatment or many medications). The ingredients in some collars have been known to irritate the skin of some dogs, especially around the neck, or their eyes. Keep a close eye on your dog over the first couple of weeks of using a new flea collar to watch for skin reactions or other side effects.

How old should dogs be to wear flea collars?
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Check your chosen brand of flea collar. Some can be used on puppies from six or eight weeks of age, whereas others are only suited to adult dogs.

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