Top 9 Best treatment for dog fleas In 2021

If you are wondering what treatment for dog fleas will be best for your furry friends, stay right where you are. Today I’m going to take you through:

  • The best fast-acting flea and tick treatment
  • Tick spray for dogs
  • How to spot fleas
  • Flea pills
  • And much much more! 

Top 5 Treatments for dog fleas In 2021

Editor’s PicksBrand
Best OverallBayer K9 Advantix for Dogs
Runner UpFrontline Plus Flea and Tick Treatment 
Best Budget BuyPet Armor Spot on tick
Best For AllergiesZesty Paws Immune Allergy Supplement
Best OralCapstar flea tablets

Best overall treatment for dogs (Editors Choice): Bayer K9 Advantix

Best Overall Treatment For Dogs
K9 Advantix II Flea, Tick and Mosquito Prevention for Large Dogs
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05/13/2021 05:54 pm GMT

Help protect your furry giant from pesky parasites and diseases that are potentially harmful and transmittable. This product is a vet-recommended, broad-spectrum, and formulated specifically to kill mosquitoes, ticks, and fleas as well as repel them. 

Your pet won’t feel any pain from bites. Furthermore, K9 Advantix II Flea & Tick Treatment kills every life stage of fleas, preventing a second infestation. It also repels biting flies and even kills lice. 

There is also a waterproof formula for dogs seven weeks or more weighing fifty-five pounds or more. What I liked best about this product is that even when swimming and bathing it works up to four weeks. 


  • Starts to work within twelve hours, killing all pests upon contact.
  • The broad-spectrum, waterproof formula works up to four weeks and is waterproof.
  • Conveniently available in packs of six treatments
  • Easy to apply


  • Price is pretty high in its category

Runner Up: Frontline Plus Flea and Tick Treatment

Runner Up
Frontline Plus Flea and Tick Treatment for Dogs
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05/23/2021 11:04 am GMT

Frontline Plus Flea and Tick Treatment have been trusted for their pet products for over 20 years by veterinarians. This treatment kills flea and ticks including Lyme disease, flea eggs, and larvae. This medication works with two killing ingredients.

The first is fipronil which is used to kill fleas and ticks whilst the other is (S)-methoprene use to attack flea eggs and larvae. Its long-lasting formula is stored in oils of your dog’s skin to provide flea prevention for a promised “full” 30days.

On average, you can expect a 3-dose supply to last around 3 months and comes in an easy to apply blister that requires your dog to be dry for the following 48 hours. Whilst this may be a downside, you still get the added benefit that after the wait it’s back to normal activity with the peace of mind that preventative action is in place.


  • Fasting acting
  • Long-lasting
  • No need


  • Advertised as waterproof, but your dog must be dry for 48 hours first 

Best for skin allergies: Zesty Paws Immune Allergy Supplement for Dogs

For Skin Allergies
Zesty Paws Allergy Immune Supplement for Dogs
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05/24/2021 12:59 am GMT

I love the natural ingredients in this product. Each chew-able contains a pre-milk helping with immune functions, allergies, and digestion called Colostrum. Zesty Paws Immune Allergy Supplement also provides additional care for your dogs such as organic licorice root and apple cider vinegar. 

Wild Alaskan Salmon Oil is contained in this product to provide the DHA and EPA Omega 3 Fatty acids that provide immune support and skin support for dogs with allergies, hot spots, and itching.

Zesty Paws Immune Allergy Supplement for Dogs with Wild Alaskan Salmon, Omega 3, Anti Itch And Skin Hot Spots Plus Seasonal Allergies simply does not disappoint.

Probiotic and pre-biotic complex are supplements that feature a powerful prebiotic strain of probiotics for 250 million CFU of healthful bacteria supporting dog digestion and a healthy immune system. Boost your pet’s immune system with these soft, grain-free chewable that support digestive and histamine health for dogs with environmental, seasonal, and skin allergies.


  • Enhanced with Epicor, with 80mg per chewable
  • Contains antioxidants, proteins, vitamins, and fiber for your dog’s total health
  • Works great on dogs with flea allergy dermatitis
  • Long-lasting


  • This sells out easily as it is such a good product

Best For Puppies: Selamectin or Revolution

Best For Puppies
Revolution (Selamectin) - Flea and Heartworm Treatment
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Selamectin or Revolution is a simple, safe topical monthly medication used to protect puppies from ear mites, fleas, heartworm, and canine sarcoptic mange. You do need a vet prescription. The 3-pack is three doses that last for three months.

There is no weight requirement for using the Revolution on dogs six weeks of age or more. 

Selamectin or Revolution is easy to use, administered only once a month, controls the infestation of American Dog Ticks. It also controls and treats ear mites and sarcoptic mange in dogs. Fights both surface and internal infections of parasites.

Your dog is protected from fleas and heartworm also. The way Revolution works is that it penetrates the skin, goes into the bloodstream of your pet where its active ingredient, selamectin, starts to work. 


  • Easy, safe to use
  • Kills 90% of adult fleas
  • Treats even mange, and can even be used on cats

Best for seniors: Pet Armor Spot On Tick and Flea Treatment

Best For Seniors
PETARMOR Plus for Dogs Flea and Tick Prevention for Dogs
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05/23/2021 10:53 am GMT

Pet Armor Spot on tick for senior dogs provides protection the entire month-long against parasites that could potentially be harmful. 

To use this treatment for senior dogs, pour a small oily amount of fluid on your pet’s skin. After 12 hours you will see almost every flea and tick gone from your pet. Not only do these work quickly, but they are also easy to apply. This product breaks a parasite’s life cycle completely.

It’s also waterproof and weather-proof one day after you apply it. This product can easily be applied to your dog’s coat and uses active ingredients such as fipronil to tackle your flea infection.


  • Lasts for up to thirty days after applied
  • Works within 24 hours
  • Lasts up to 12 weeks
  • No need to re-apply after your dog takes a bath


  • Very furry dogs may be harder to apply this product on unless you shave off some hair between their shoulders

Safest Flea Treatment: Wondercide Natural Products

Safest Flea Treatment
Wondercide Natural Products - Yard Flea, Tick and Mosquito Spray – Mosquito and Insect Killer, Treatment, and Repellent
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05/24/2021 12:59 am GMT

This product controls mosquitoes, ticks, and fleas for your dogs and even your home. These come in wipes or a spray. What’s more, is that it’s naturally-derived and does not contain any artificial ingredient. 

Wondercide Natural Products peppermint oil, rosemary, lemongrass, and cedar aromatherapy scents. Don’t be deceived, however, no matter how natural and safe this product seems, it powerfully does work. Your dog’s fleas are externally treated and repelled by this powerful formula. 

Powered by nature and plant-based, this product is the safest for your pet dog no matter what age they happen to be. Using essential oils, this spray repels and kills on contact. It gets rid of mosquitoes, ticks, and fleas.

It eliminates the entire life cycle of every pest, including the adult fleas, eggs, and larvae. No harsh chemicals are included.


  • Smells great and can even be used on your couch.
  • All-natural ingredients work powerfully to eliminate fleas effectively
  • Gentle enough o to use on puppies


  • Runs out pretty fast

Best Oral Flea-Treatment: Capstar Flea Tablets

Best Oral Treatment
Capstar Fast-Acting Oral Flea Treatment for Small Dogs, 6 Doses, 11 mg (2-25 lbs)
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05/23/2021 10:52 am GMT

Each tablet contains an effective flea eliminator called Nitenpyram. This formula acts fast and begins to work just half an hour after your dog has swallowed the pill. Capstar flea tablets are fast-acting and use active ingredients to kill adult fleas in just a matter of hours.

All you need to do is to use the tablet according to the instructions. I find this to be the most convenient way to get rid of ticks and fleas. You are saved from all the hassles of having to catch and spray your dog, which of course means the easier application of treatment.

There’s no need for a prescription from your veterinarian and the flea pills start to work within just 30 minutes of administration. However, if you notice a flea infestation making its way back in, you can apply treatment daily to eliminate.


  • No odors, no messes, an easy tablet to swallow
  • Safe for puppies just four weeks old and older
  • Fast-acting (Kills adult fleas within 4 hours)


  • Requires that you carefully follow instructions for safe use 

Best Flea Shampoo: Adams Plus Flea And Tick Shampoo With Precor

Best Overall With Precor
Adams Plus Flea and Tick Shampoo with Precor, Flea Treatment
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05/23/2021 11:07 am GMT

Adams Plus Flea And Tick Shampoo With Precor prevents flea eggs from getting hatched for an entire month. It deodorizes and cleanses your dog too, even as it prevents fleas and ticks on your pooch.

Every dog can use this and even cats. Contains a growth regulator for insects to prevent and kill the development of fleas for up to twenty-eight days. This formula is for sensitive skin and also has soothing oatmeal, coconut extract, lanolin, and soothing aloe.

This shampoo kills flea larvae, lice, flea eggs, ticks, and fleas effectively. Having been around since 1975, no wonder more vets trust this brand and it even got a pretty high rating on every online marketplace. 


  • Safe for every age of dog or cat so you can buy one shampoo for all your pets.
  • Works instantly, which is great for people with not a lot of time.


  • One product goes quickly when you have lots of pets

Best Flea Tablets: Sentinel Flavor Tablets for Dogs

Best Flea Tablets
Sentinel Flavor Tablets for Dogs, 11-25 lbs, 6 treatments (Green Box)
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These tablets are created for puppies and dogs four weeks or older. Say goodbye to your pooch’s flea populations because this tablet works pretty quickly.

When used in conjunction with a flea-repellent shampoo, this winning combination may have you saying goodbye to fleas forever. Sentinel Flavor Tablets for Dogs Pack of Six conveniently has more than one in a pack so you don’t have to keep running t the store to get more until your dog needs it again. 

These oral flea tablets should be used once a month at the recommended dosage of ofn0.23 mg/lb (0.5 mg/kg) milbemycin oxime and 4.55 mg/lb (10mg/kg) lufenuron. Youll find there are multiple color codes to the variety of available flea Sentinal tablets. This is used to represent the varying levels of strength for each dosage.

On the lower end for dogs weighing between 2-10 lbs a recommended dosage of 2.3 mg Milbemycin Oxime & 46 mg Lufenuron is advised, whilst larger dogs weighing between 51-100 lbs are advised dosage of 23 mg Milbemycin Oxime & 460 mg Lufenuron will be needed.


  • Easy to use, and safe for your dog, and even includes intestinal worm eradication
  • Protects your dog from heartworm disease and intestinal worms
  • Varying strengths of dosage available


  • You need a prescription for current heartworm test result on file with your veterinarian
  • Possible side effects of vomiting and weakness 

How to Spot Fleas on Dogs

When it comes to spotting fleas on your dogs, it isn’t that hard to figure out. When your normal, calm dog starts to display unusual behavior like he or she is trying to eliminate some creepy crawlies, then chances are, your dog has fleas. Your dog may start shaking his head. scratching or biting her own paws and this is a dead giveaway.

To spot fleas on your dog, just watch his behavior. Scratching excessively, biting paws and frequent head shaking is an indication. Inspect the skin of your dog, as well. Dark insects smaller than ants between their toes and ears are indications of fleas. You might want to treat this immediately before it gets any worse.

Natural ways to get rid of fleas

Theres no doubt that use natural ways and methods of getting rid of fleas can be just as effective as medication. I find these safest for dogs with allergies, especially, since the natural ingredients don’t really contain any artificial chemicals. A few of my favorites include:

Apple cider vinegar and salt flea spray: This helps get rid of my dog’s fleas and they happen to be ingredients most of us already have!

Lemon Bath: Though it may sting a bit, a lemon bath will repel fleas as they hate strong smells, just like mosquitoes do. 

Lather bath: A lather bath will help slide off some fleas from your dog. If you use anti-flea soap or shampoo, even better. 

Rosemary Dip: Fleas hate rosemary and are repelled by them. Enough said.

Organic Soaps- Organic soap used to repel insects will work on deals as well. these include rosemary, citronella, and peppermint.

Coconut oils: Coconut oil suffocates the fleas off your dog so you need to coat your dog with the oil generously for about an hour or more before rinsing off. 

Collars that force fleas out 

When it comes to effective dog flea collars, some of the most effective and highly-rated collars that force fleas out and actually work include:

Petsmart Flea Collar For Dogs: My dog uses this brand and it really is effective, no wonder it gets top ratings.

Flea And Tick Prevention For Dogs Waterproof Flea Collar: Perfect for dogs that love playing in the rain or in the pool!

Seresto Tick and Flea Collar: Highly effective brand is trusted by millions of consumers because basically, it works.

Bayer-Seresto Animal Health Tick Collar: Uses Bayer products to repel pesky parasites

Adams Flea And Tick Collar For Dogs: This brand has been around for ages and has found a winning combination that helps your pet remain tick and flea-free.

What Is the Best Way to Get Rid of Fleas on Your Dog?

Prescription Flea Medications: these are vet-recommended and prescribed methods of getting rid of ticks and fleas on your pooch. Remember, your vet knows what works.

Nonprescription Medication to Treat Fleas on Dogs: these are available over the counter and all you need to do is to check their rating and feedback and you can go ahead and find one you plan to try.

Dog Flea Shampoos: A dog flea shampoo is effective in instantly killing ticks and fleas in your dog’s skin and fur. Most flea shampoos deodorize as they work against ticks and fleas. Find a brand that works for you.

Collars: Once your dog is tick and flea-free, putting on a collar to help prevent future outbreaks does work. However, a collar alone won’t really remove everything, particularly if you did not use any other method to eliminate ticks and fleas. 

How to maintain a flea-free home: 

There are a few different methods to keep a home flea free. Keep your home clean by vacuuming a minimum of once a week. Many larvae and flea eggs love to be hidden within the carpet. A weekly cleaning ought to fix this problem. 

Regular grooming and brush will reduce the number of fleas that enter your home. Simply give fidos coat a brush and watch the fleas and ticks fall out. Remember, an ounce of prevention is worth a pound of cure. If you have a front or a back yard, keep your grass mowed and trim back your shrubs.

Ticks and fleas won’t have a place to hide in a well-landscaped yard. 

It’s also a good time to take up some new cleaning habits. A regular weekly vacuum will reduce your flea infestation allowing treatment to provide the most effective results. Be sure to cover all areas including:

  • Under furniture
  • Under cushions
  • And anywhere your pup spends time

Fleas avoid high traffic areas making them that little bit more difficult to catch in the act!

 What to avoid when buying flea treatments?

Here are a few actionable steps you can take to avoid making the wrong decisions. To fast track your route to a solution is better to avoid the mistakes, right?

  • Avoid guessing which products to buy. Talk to a professional and do some research before you jump into the next store to purchase a random thing.
  • Avoid buying products with ingredients your dog is allergic to.
  • Senior dogs and puppies do have special needs and maybe extra sensitive. Make sure to cater to every flea product to them.
  • Avoid using bare hands to apply any product on your dog. Instead, wear gloves.
  • Avoid not reading the label or following every instruction written on the label of your flea and tick treatment product.

Frequently Asked Questions

Now its time to answer your questions. There are a few things that you may have felt we didn’t cover in this article… So to ensure we touch base on just about everything there is to know, I decided to answer a few quick questions to make sure that no stone is left unturned. 

What kills fleas on dogs instantly? 

Believe it or not, dish soap can help you create a flea trap when you use water along with the soap. Other products that kill fleas on dogs instantly include diatomaceous earth and baking soda. 

Can you catch fleas from your dog? 

Yes. There are flea species by the thousands and some species do jump over and bite their human owners as well. However, fleas are not able to live and survive on humans that practice good hygiene, as a general rule. 

How long does it take to eliminate fleas on a dog?

Dog shampoo instantly gets rid of dog fleas. Also, dog pills that kill fleas take less than an hour to start working.

Does vinegar kill fleas on dogs?

Apple cider vinegar does repel fleas. However, regular white vinegar won’t do the thing. However, ACV should not be your first choice when it comes to treating your dog for fleas. 


The solution to the problem is best served as prevention. But if you find yourself in much need of flea control, then treatment such as bravecto chews for dogs maybe your best option.

Regular cleaning is advised, with a good medication that uses active ingredients to kill fleas and ticks and prevent eggs or larvae from developing re-infestation.

Thi review provides all the resources to kill fleas and ticks within 30 days. Be sure to let us know how this works out and best of luck with tackling this problem.

Jennifer Cosculluela

Jennifer Cosculluela

Jennifer Cosculluela graduated magna cum laude in Marketing from the State University of New York’s F.I.T and was a Presidential Scholar, specializing in Shakespearean Studies. She also has an AB Psychology Degree from De La Salle University Bacolod and when not writing, loves to spend time with her daughter Margarita and bake cookies and lasagna for her loving husband Sebastian.

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Jennifer Cosculluela

Jennifer Cosculluela

Jennifer Cosculluela graduated magna cum laude in Marketing from the State University of New York’s F.I.T and was a Presidential Scholar, specializing in Shakespearean Studies. She also has an AB Psychology Degree from De La Salle University Bacolod and when not writing, loves to spend time with her daughter Margarita and bake cookies and lasagna for her loving husband Sebastian.

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