Best Dog Flea Treatment Reviews 2023

Flea infestations can not only be troublesome, but also unhealthy for your dog. The good news is that there are a plethora of treatment options that eliminate these resilient pests effectively! The bad news is that, with the many brands available, it can be confusing choosing the best dog flea treatment. After thorough research, we’ve reviewed some of the best dog flea treatment brands to help you find the right treatment for your furry friend.
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Relief time
Our Top Choice
Bayer K9 Advantix II Flea Treatment
Bayer is a company that is dedicated to the production of various items that eliminate nuisance insects. They’ve made a name as a favorite brand among Americans.
Kills and repels blood sucking insects; no need to re-apply if dog gets wet. Only needs to be applied once a month.
Not strong enough for dogs that live outdoors
4-10 lb, 21-55 lb, 55+ lb
7 weeks and older
6-, 4-, and 2-month supply
4 weeks
Best Value
PetArmor Flea and Tick Repellent
Through their innovative practices, PetArmor produces highly effective pet health products at a lower cost, saving you money while still allowing you to give quality care to your pets.
3 applications; waterproof; comes in various sizes
Some side effects reported
45-88 lb
8 weeks and older
3, 30-day supply
30 days
Merial Frontline Plus Dog Treatment
Merial is a global animal health company with a sharp focus on providing quality products that ensure animals and their owners stay happy. The company has a wide assortment of items to suit your needs.
30 day continuous protection; 6 month supply. Kills 4 major tick types. Kills flea eggs and larvae too.
Cannot be used on puppies
45-88 lb
8 weeks and older
6-month/ 1-year / 1.5-year supply
30 days
Capstar Nitenpyram Dog Flea Tablets
Capstar is a company that focuses on helping pets live healthy and happy lives through their line of high-quality veterinary care products. They’ve earned a positive reputation with pet owners.
Begins working in 30 mins; kill adult fleas within 4 to 6 hours; okay to give your pet multiple treatments
Not to be used as a monthly flea/tick treatment or repellent
2-25 lb and 25+ lb
4 weeks and older
6 tablets; 60 tablets
Only eliminates current fleas
Sentry Capguard Flea Tablets
For over 100 years, Sentry has been making top-notch animal health products that allow you and your pet to live care free! Safe, happy and protected pets are what Sentry is all about.
Safe to give multiple doses; available in different sizes; multi-pet use
Isolated complaints of it only killing adult fleas.
25+ lb
4 weeks and older
6 tablets
Only eliminates current fleas

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Watch Our Dog Flea Treatment Review

What is the Best Dog Flea Treatment?

The best flea treatment is the one that’s safest for your dog, extremely effective, easy to use and budget friendly. However, the choice of treatment will mainly depend on what you deem simpler and more convenient for treating your pet. And with our best picks from our top brands, choosing the right flea treatment product couldn't be easier.
Our Top Choice
The K9 Advantix II Flea Treatment is a specially developed topical flea and tick control treatment that ensures your dog stays free of fleas, ticks and mosquitoes. This treatment is only applied once per month. Are you looking for a cheaper product that repels and kills fleas, ticks and mosquitoes? The Bayer Advantage II Topical Flea Treatment for Dogs is relatively cheaper and remains effective for at least a month.

Bayer K9 Advantix II Flea And Tick Control Treatment for Dogs – Available in 5 Sizes & 3 Styles

Bayer is a global company that uses high-quality innovation to solve everyday problems. The company produces a wide range of products that help protect your pet and your family from unwanted blood sucking insects.

The Bayer K9 Advantix II is a specially manufactured topical treatment that kills fleas, their eggs and larvae, which means your dog will be protected even if they currently have fleas. This treatment does not prevent your dog from swimming or bathing since it remains effective even after your pet gets wet! If you want a treatment that kills lice, ticks and other bloodsucking insects and lasts for a whole month, this may be the solution for you! Whether your dog is 4lbs or over 55lbs, Bayer has the flea treatment for them.
Best Value
Their Squeeze On Flea and Tick Repellent is manufactured using fipronil, which guarantees that your dog will be free from ticks, chewing lice and fleas in just one application! This product will also clear up any problems your pup may be having with mange. Looking for a flea treatment that can be used with dogs and cats? The PetArmor FastCaps Oral Flea Treatment Medication kills fleas fast and is ideal for pregnant cats and dogs.

PetArmor Squeeze on Flea and Tick Repellent for Dogs 45 to 88-Pounds – Other Sizes Available

PetArmor is a trusted maker of pet health products. With low cost products, the company is a household name for pet lovers.

If fleas are affecting your relationship with your pup, try PetArmor’s Squeeze On Flea and Tick Treatment for Dogs! This treatment kills fleas, ticks and lice at an affordable price. It’s really easy to apply and protects your dog for at least a month. If you’ve got an issue with fleas or ticks, you probably want it gone as soon as possible (and so does your dog!) which is just what this product does. It contains fipronil and within an hour after applying it begins working. We’re featuring the treatment for dogs from 45 to 88 pounds, however, PetArmor also manufacture this product in other sizes, so you’re bound to find the right size for you.
The Merial Frontline Plus for Dogs is designed for dog owners looking for long-lasting flea, tick and lice management. This treatment not only kills fleas, but also their eggs and larvae, and it kills 4 major tick types. If you’re looking for a treatment to be used on both adult dogs and puppies, the Merial Frontline Plus Flea and Tick Control for Dogs and Puppies is ideal for dogs aged 8 weeks and older.

Merial Frontline Plus Flea and Tick Control for 45 to 88-Pound Dogs – Available in 4 Pack Sizes

Merial is in the business of ensuring you and your pets have the best relationship! This company manufactures various products that help to improve the health of your dogs and cats so your quality time with them is never interrupted by unwanted pests.

Merial’s Frontline Plus for Dogs is designed for people interested in easy and long-term pest control management. This treatment not only kills the fleas, but also their eggs and larvae, preventing more from hatching and growing on your pet! It acts fast and lasts a long time with continual protection for up to 30 days. Also, you don’t have to worry about your dog getting wet after the treatment because it’s waterproof. Perhaps one of the best things about this product is it comes in a 6-pack, so that’s 6 months worth of treatment! Also, if you didn’t want quite as much as this when you first purchase, you can get it in a 2, 3 or 5 pack instead.
The Capstar Flea Tablets makes flea control and management really easy, yet super effective. The oral tablets kill fleas within hours of use, and can be used on small adult dogs and puppies, and small adult cats and kittens. If you need a flea treatment that can be used on big dogs, Novartis Capstar Flea Tablets for Dogs and Cats is a great product to try!

Capstar Novartis Capstar Nitenpyram Flea Tablets for Dogs and Cats – Available in 2 Pack Sizes & 2 Dog Sizes

Since it was founded, Capstar has focused on providing superb products to enhance the lives of pets everywhere. The company provides pet owners with a wide variety of items to suit their needs as well as the needs of their pets!

The Capstar Flea Tablets helps control fleas in both dogs and cats. The tablet begins working in just 30 minutes, and you’ll notice a significant reduction of fleas within a few hours.

We also liked that it’s…
  • Ideal for small dogs and cats
  • Ideal for kittens and puppies
  • Kills adult fleas
  • One tablet is one dose
  • Can be used daily in case of re-infestation
  • Is available in a pack with 6 tablets or 60 tablets!
Their Capguard contains nitenpyram, which guarantees the eradication of any adult fleas on your dog. With one pill, your pup will be itch-free within 4 hours! Looking for flea treatment for both dogs and cats? Check out Sentry’s Capguard Oral Flea Treatment Medication for dogs 2 to 25 pounds.

Sentry 6 Count Capguard (Nitenpyram) Flea Treatment for Dogs 25lbs and Up

Sentry is your go-to brand for any at-home health solutions you may need for your pet! The company has been operating for over 100 years, so they have the experience to provide you with the highest quality animal health products!

Controlling and managing fleas should be an easy task, which is why Sentry made Capguard! This easy-to-administer tablet starts working in minutes, and within a few hours, your pup will be flea-free! We loved this product because…
  • Kills fleas with one dose/tablet
  • Starts working within 30 minutes
  • Contains Nitenpyram, which is recommended by veterinaries
  • Okay to give multiple doses
  • Smaller dosage size can be used on cats and dogs

How Do I Choose the Best Dog Flea Treatment?

A dog infested with fleas may become very nervous, irritated and may scratch excessively because of the painful bites. Discovering fleas on your dog or pet can be stressful, especially if you have other animals in your home. We recommend combating current flea infestations and preventing new ones from ever happening with monthly flea and tick treatments!

Even if you clean your dog’s crate or limit your pet’s movement by installing a dog gate, your pup will likely still be susceptible to a flea infestation. There are lots of great anti-flea medications available on the market including sprays, topical ointments, tablets and injections, but the way each functions is different. Some prevent flea eggs from hatching while others just kill the adult fleas. Knowing the various types of anti-flea treatments and how they work will help you effectively eradicate any flea infestation on your pooch.

Here are the two main types that are available to consumers:

Tablet medications such as Capstar or Comfortis guarantee the most effective flea treatment for dogs. They’re orally administered, and work by paralyzing and killing fleas. Oral flea medication typically get rid of fleas within the first four hours.

This type of flea treatment includes natural shampoos, spot-on treatments and powders, which offer an easy way to remove fleas by applying the medication on your dog’s skin.

So, which type of flea treatment should you get for your dog? Our guide will help you make the most informed buying decision, but the “best” treatment is really whatever fits in your budget, what will help your pup the most and is the most effective in helping your pets live an itch-free life!
Flea treatment may cost you anything between $15 and $75. The difference in pricing can be attributed to the size of your dog or cat, and the quality and the quantity of the treatment. Highly priced flea medications are more efficient and convenient as they eliminate fleas, flea eggs, flee larvae and ticks. They also tend to be waterproof and last about a month.

However, if your budget is limited or if you only need to get rid of fleas, you can try cheaper treatments. Oral tablets, like the ones Sentry makes, are the best at eradicating a current flea problem. However, because they are designed to just kill fleas—not prevent them—it’s best used on pets that are normally indoors and/or live in colder climates. If your pet lives outside and in a warmer climate, you may want to consider preventative flea medicines instead.
There are a lot of options to choose from when you're shopping for flea treatments. To make your purchase hassle-free, there are several factors you may want to take into consideration…
  • Reliability Choose the flea treatment that works fast to help relieve your pet of that annoying itching!
  • Weight Confirm that your dog or cat’s weight is within the treatment’s recommended weight range.
  • Age If you’ve got a puppy or kitten, make sure the product is safe to use on them. Some products protect puppies/kittens as well as adult animals, but some have separate treatments for younger animals.
  • Type Choose between pills or topical treatments, depending on the level of protection you need your pet to have.
  • Prevention If you’re just combating a current flea infestation, you can skip this point. However, if you need your pet protected from fleas and ticks long-term, consider a 30-day treatment.
  • Side effects All flea treatments have side effects, but some have fewer than others, so be sure to read the box or product info before purchasing.
Construction and Design
Topical flea treatments are designed to help curb fleas before they become hard to manage, and you apply these about once a month. Within 12 hours, you should see a reduction in your dog’s fleas, and the fleas should continue to die off as the medicine provides continuous protection. Most topical treatments are waterproof, so feel free to give your dog a thorough bath or let them go swimming—the medicine will stay on.

Oral treatments can be “re-applied” the next day or immediately if you think your pet didn’t swallow their pill. These treatments are great at eradicating fleas fast (within 4 to 6 hours for dogs and cats), making them perfect as one-time flea treatments. Tablets won’t protect your pet from future fleas or from ticks, but they will help you eliminate a current problem.
Performance and Ease of Use
Most flea treatments can be used on adult dogs, puppies and pregnant or nursing dogs, too. If your dog or cat is pregnant, always make sure you read the label before administering any medicine to them. If you have a puppy or kitten, make sure the medicine is formulated for them, too. Usually, the heavier the animal, the more potent the medicine, so keep this in mind if your animal is under- or overweight.

All the flea treatments in our review are easy to apply and effective. Because fleas bring unwanted visitors in from the outside—such as tape worms—it’s best to start your pet on some type of flea treatment as soon as you the little bugs on them.

Get the Best Dog Flea Treatment of 2023!

And that’s all you need to know about flea treatments to make the best purchasing decision. We hope our recommendations helped you find the right treatment for your dog!

Our Top Choice
Bayer K9 Advantix II Flea Treatment
Best Value
PetArmor Flea and Tick Repellent
Merial Frontline Plus Dog Treatment
Capstar Nitenpyram Dog Flea Tablets
Sentry Capguard Flea Tablets