Natural Chemistry Natural Flea Shampoo for Cats, 16-oz, bottle

By Natural Chemistry
Rated 3.8 out of 5 stars
$11.49Chewy Price
$10.92Autoship Price
(Save an extra 5%)

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Frequently Bought Together

Natural Chemistry Natural Flea Spray for Cats, 8-oz, spray
Rated 3.4062 out of 5 stars
$11.86Chewy Price
Total Price: $26.54

About This Item


  • Kills fleas and ticks on contact without harmful chemicals.
  • Does not interfere with spot-on flea treatments and is designed to work for up to 7 days.
  • Safe for use on cats from all life stages, from kitten to adult.
  • Contains natural ingredients that work together to provide natural flea protection.
  • Also helps combat black flies and mosquitoes.

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Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

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Top IngredientsActive Ingredients: Cinnamon Oil 0.25%, Cedarwood Oil 0.10%, Clove Oil 0.10%....Active Ingredients: 0.150% Pyrethrins, 0.300% Piperonyl Butoxide, 0.479% mgk 264 Insecticide Synergist....Pyrethrins, N-Octyl bicycloheptene dicarboximide, PyriproxyfenActive: Pyrethrins 0.05%, N-Octyl-Bicycloheptene Dicarboximide 0.50%, Pyriproxyfen 0.01%...
LifestageAdultKitten, AdultKitten, Adult, SeniorKitten, Adult, SeniorAdult

Questions & Answers

7 Customer Questions

What are the ingredients (all of them not just the active ones)?
Answer by ChewyJan 21, 2019
The ingrients in this shampoos are Sodium Lauryl Sulfate, Cinnamon Oil, Cedar Wood Oil, Clove Oil, Water, Vanillin (benzaldehyde, 4-hydroxy-3-methoxy).

Does this shampoo beside killing the adult fleas, will also kill the eggs and larvae?
Answer by ChewyMar 14, 2018
This shampoo is formulated with natural cinnamon oil, clove oil and cedar oil which kills fleas, black flies, and mosquitoes by contact and is fully effective on fleas for up to 7 days.

how do you administer this? must you put the cat in a tub and get it wet, then put on the shampoo? how long must it stay on the pet before rinsing? and do you rinse it off?
Answer by ChewyNov 16, 2020
Apply shampoo onto coat of pet. Work shampoo into pet's coat. To improve results, rub into pet's coat and rinse after 5 minutes. Be sure that the entire pet is treated including hard to reach areas, such as between paws. Rinse animal thoroughly then dry. Repeat as necessary, but not more often than at 3-day intervals.

Does this work on dogs as well or only cats?
Answer by ChewySep 12, 2020
The Natural Chemistry Natural Flea Shampoo has been formulated for cats and kittens.

ReviewsWrite a Review

Rated 3.8 out of 5 stars
20 Ratings
Would recommend to a friend

20 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 1 out of 5 stars
By Deb on Aug 20, 2023

the vet and internet say never use essential oils on cats

the vet and internet say never use essential oils on cats

Rated 5 out of 5 stars
By Conrad on Jul 3, 2022

Almost comical...

For the person whose bottle was broken/spilled: Contact Chewy for a replacement!! The others who complain about it being "watery" or "doesn't 'foam up': "Foam" isn't necessary for a "cleaning agent" to work. -- For ME,... I *LIKE* that it is 'thin'/watery: I can control where it goes (not in the cat's eyes!) -- I *LIKE* that is doesn't 'foam' everywhere: I don't have to rinse the cat for 10 minutes. -- Our 24-lb, orange-tabby, medium-haired, Maine Coone cat did NOT like getting wet, but... he danged-sure felt better when we were done. (...and his fur feels wonderful!!) -- We used Over Half a Bottle on Charlie. I'm not worried about the expense: IT WORKS.

Rated 1 out of 5 stars
By Haley on Oct 31, 2021

don’t bother

Bottle came with the seal broken, leaked product (noticeable portion of the bottle is missing) and the label is all soggy. Smells awful- not able to use this on my pet because of how awful it smells. And 1/3 of the bottle is missing anyway.

Rated 5 out of 5 stars
By MilkyWayRagdolls on Oct 13, 2021

We love it!

We love this shampoo & the spray as well! It has a wonderful scent and is so gentle we can use it on our kittens as well as our adult cats. This is one of our "go to" products here in our cattery!

Rated 1 out of 5 stars
By Rascal on Sep 2, 2020

Natural Chemistry flea shampoo for cats

This stuff is awful. It does not lather. It does not have a pleasant smell. It did not get my boy clean. I do NOT recommend this product. In fact I am going to the pet store to pick up a bottle of good shampoo.

Rated 5 out of 5 stars
By Yasha on May 10, 2020

Thank you very much

Thank you guys you are doing great job My cat is very happy and I’m happy with him .. Sincerely Marina U.

Rated 5 out of 5 stars
By MissK on Oct 14, 2019

Smells and works great

I've been using this for almost 6 years and I love it. It works very well, leaves my kitties coat soft and silky. I prefer to bathe them rather than being on a toxic formula to keep the fleas away. My kitties have not had fleas in years. I will say that if your kitty has really bad fleas, this may not work as well. This is better for mild flea issues.

Rated 5 out of 5 stars
By Luvmykity on Sep 28, 2019


I absolutely love this product! It killed the fleas on the first try but I'm even more impressed by how soft my cats fur is! OMG I can't stop petting him. The best flea shampoo for cats hands down.

Rated 4 out of 5 stars
By JERofAO3 on Nov 24, 2019

Awesome smell...

Awesome smell, wish the shampoo was thicker and less watery. But does the job.

Rated 3 out of 5 stars
By TheCoronaCats on Feb 4, 2019

Works Great But Cats Did Not Like!

The shampoo worked great and killed some fleas on contact. Unfortunately one of my cats is very sensitive to the fragrance of it which has caused behavioral problems towards the other cat, hence now I have stopped using the shampoo. Other than that, it works fine and gets the job done.