Find The Best Dog Shampoo to Kill Fleas of 2022

A flea may cause itching and scratching, or it may look like black specks of flea dirt. There are several diseases that fleas carry, some of which can cause serious health problems for people.1 Fleas can also cause itching, irritation, and hair loss in dogs.

When it’s time to give your pet a flea bath, choose a shampoo based on the ingredients and the age of your pet. You should consult your veterinarian before applying flea shampoo, as some pets are sensitive to its active ingredients. To keep fleas at bay in the long run, these shampoos should be followed by a flea prevention product. They can help with an immediate infestation.

Ahead, we’ve rounded up the best dog shampoo to kill fleas.

6 Best Dog Shampoos to Kill Fleas

1. Adams Plus Flea & Tick Shampoo

Designed to kill fleas, eggs, and larvae, this flea shampoo can be used every 28 days to prevent re-infestation by killing fleas during their cycle. It contains oatmeal, lanolin, coconut extract, and aloe to moisturize and condition the coat and skin of your dog.

You should wet your pet, shampoo him or her, and lather for three to five minutes before rinsing. The active ingredient is pyrethrins, which can be harmful to cats. It is approved for dogs as young as 12 weeks, but always check with your vet. You should not use flea shampoos containing pyrethrins on kittens or cats.

What We Like

  • Kills fleas, eggs, and larvae
  • Moisturizes skin and coat
  • Lasts for 28 days

What We Don’t Like

  • Some dogs react to chemicals

2. TropiClean Natural Flea & Tick Dog Shampoo

A combination of essential oils can kill fleas on your dog with this TropiClean shampoo if you prefer a more natural way of fighting them. During the first seven days, the mix repels fleas, ticks, larvae, and eggs on your dog. Once the mixture has dried, you have to wash your dog again or use another flea prevention product. However, shampooing your dog that often isn’t ideal because you shouldn’t bathe him more than twice a week.

The shampoo has a light, citrus scent and contains cocoa to soothe itchy, irritated skin caused by scratching at fleas and ticks.

What We Like

  • Contains cocoa to soothe irritated skin
  • Has five essential oils
  • Light citrus scent

What We Don’t Like

  • Only repels fleas and ticks for up to one week

3. SENTRY PET CARE Flea and Tick Shampoo With Oatmeal

A cost-effective shampoo that kills fleas and ticks on dogs and puppies as young as 12 weeks old. The shampoo is pH balanced for the skin of dogs and is designed to clean, deodorize, and condition the coat of your pet.

To get rid of fleas in the life cycle, you’ll need to bathe your dog regularly. The shampoo is not safe for cats and kittens.

What We Like

  • Contains oatmeal to soothe skin
  • Inexpensive compared to some

What We Don’t Like

  • Lasts for only 10 days

4. Vet’s Best Flea Itch Relief Dog Shampoo

It contains oatmeal and neem oil, which soothe itchy skin due to flea bites and flea allergy dermatitis.

This works best when used along with other flea relief products like monthly preventatives or other shampoos like Chewy’s Advanced Strength Flea and Tick Shampoo. With rosemary and peppermint essential oils, your dog’s fleas, flea larvae, flea eggs, and ticks are killed naturally. The shampoo has no added fragrances; it smells fresh and pepperminty.

What We Like

  • No chemicals or added fragrances
  • Lathers and rinses easily

What We Don’t Like

  • Doesn’t kill or repel fleas

5. 4-Legger Revitalize Dog Shampoo

It contains organic aloe juice, organic oils, and organic essential oils. With its ingredients, this shampoo calms itchy skin caused by allergies, environmental conditions, and flea bites. It moisturizes, cleans, and deodorizes the skin. Due to their gentleness, these shampoos are safe for puppies; just keep them out of their eyes when using them.

Your vet may not be as effective at deterring fleas long-term as natural shampoos with essential oils such as neem. If you’re used to traditional shampoos, be aware that natural products don’t lather as much. Use a little product and keep adding water, then rinse well.

What We Like

  • Certified organic
  • Moisturizes and calms skin
  • Light smell

What We Don’t Like

  • Watery
  • Hard to lather

6. Pure and Natural Pet Flea & Tick Canine Shampoo

With certified organic oils and no parabens, sulfates, dyes, or chemicals, this shampoo kills fleas and ticks on your dog and keeps them away for up to a week.

Organic castile soap cleans, while organic rosemary oil disinfects and moisturizes while organic cedar and peppermint oils repel insects. It is Leaping Bunny-certified and made in the USA.

What We Like

  • No harsh chemicals, parabens, sulfates, or dyes
  • Made with certified organic oils
  • Gentle enough for puppies

What We Don’t Like

  • Repels pest for just 1 week

What to Look for in Flea Shampoos

To prevent cat toxicity, Lisa Tanner, DMV, a veterinarian based in Alpharetta, Georgia, recommends one labeled for cats and dogs. It is also important to read the directions carefully to ensure that they can be followed correctly.”


There are basically two types of flea shampoos: those that use synthetic chemicals and those that use essential oils. If you prefer natural products, look for essential oils, but formulas with pyrethrins or permethrins last longer and are stronger. Pyrethrins are derived from the chrysanthemum plant and permethrin is the synthetic version. Talk to your veterinarian if your pet has any allergies.


Our research revealed most flea shampoos are safe for puppies 12 weeks and older, but check the label carefully. Avoid using a flea shampoo on a young puppy because it could be too harsh on his growing skin.


Does flea shampoo work?

Flea shampoo with medicated ingredients will kill fleas for a short time. A natural shampoo with essential oils or Dawn dish soap (a favorite of animal shelters and rescuers) will only kill the fleas that are already on your pet, according to Dr. Lisa Tanner, but won’t provide any residual protection.

What should you look for when choosing a flea shampoo?

For prevention of accidental cat toxicity, Tanner recommends one labeled for use on cats and dogs. Read the directions carefully to ensure they can be followed completely.

Is flea shampoo good for cats?

Cats do not like baths, so a topical flea product applied monthly to their fur will likely be recommended by your veterinarian. Flea shampoo can be used on cats, but many do not like to bathe, so there may be an easier way to treat them.For fleas to be eliminated, it takes a minimum of three months of treatment, and we recommend a full six months of topicals along with treating the environment and all pets (dogs, cats, rabbits, ferrets, etc.).

Will lice shampoo kill fleas?

It may be tempting to grab another product if your pet is itching, but why do it? Lice shampoo, for example, can kill fleas, but it isn’t approved for animals, so it should not be used.

Final Verdict

Overall, Adams Plus Flea & Tick Shampoo with Precor (view at Chewy) is the best. The Pure and Natural Pet Flea & Tick Canine Shampoo (view at Thrive Market) is a good natural alternative that kills and repels fleas and ticks for up to 28 days. This shampoo contains no harsh chemicals and is made without harsh chemicals.

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