CHERISTIN Flea Spot Treatment for Cats, over 1.8 lbs, 3 Doses (3-mos. supply) -

Cheristin Flea Spot Treatment for Cats, over 1.8 lbs

By Cheristin
Rated 4.3821 out of 5 stars

$37.99Chewy Price
$36.09Autoship Price
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About This Item


  • Starts killing and preventing fleas within 30 minutes of application.
  • Kills 98 to 100% of fleas within 12 hours to put a quick stop to meowing and scratching.
  • Each treatment continues to work for one full month of nonstop protection.
  • Comes in an easy-to-use applicator that is non-greasy and gets down to the skin.
  • Gentle enough for cats and kittens 8 weeks of age and older.

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Play Video: Learn More About Cheristin From Our Team of Experts
Learn More About Cheristin From Our Team of Experts

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: Spinetoram 11.2% Other Ingredients: 88.8%Active Ingredients: Imidacloprid 9.1%, Pyriproxyfen 0.46%.Active Ingredients: Imidacloprid 9.1%, Pyriproxyfen 0.46%.Dinotefuran, Fipronil and PyriproxyfenActive Ingredients: Fipronil 9.8%, (S)-Methoprene 11.8%.
LifestageAdultKittenAdultAdult, Kitten, SeniorAdult

Questions & Answers

24 Customer Questions

It's been 3 weeks and my cat still has a bunch of fleas on his ears and nose. Should I apply another treatment and hope it will eventually work or assume it's not going to work for him and try something else?
Answer by ChewyAug 02, 2018
If you see fleas on your cat within a month after your pet receives flea treatment with Cheristin for cats, it is most likely these are new fleas that have very recently emerged from pupae and jumped onto the cat. These new fleas will be killed quickly before they can produce eggs that contaminate the environment.Consistent monthly application of Cheristin for cats should be maintained to provide continued protection for your cat against these fleas.

This is a new product to me. In addition to killing adult fleas does its properties include a flea growth inhibitor ?
Answer by ChewySep 25, 2017
This product is intended to kill fleas but not flea eggs, pupae and larvae. Female fleas can lay up to 50 eggs per day so there is potential for a large buildup of eggs, larvae and pupae, resulting in a constant supply of new adults emerging in the cat’s environment. We always encourage pet parents to treat all pets and surrounding areas in and outside of the home.

Is there shelf life on this product. If I don't use all of this product will I be able to use it next year
Answer by ChewySep 10, 2018
This product does not have an expiration date as long as the tubes remain sealed.

Is this the same strength that I can buy at the vet's office?
Answer by ChewyJun 27, 2018
This treatment is equivalent to treatments sold at a veterinarian office.

ReviewsWrite a Review

Rated 4.3821 out of 5 stars
895 Reviews
Would recommend to a friend

895 Customer Reviews

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Rated 5 out of 5 stars
By STAC on Jan 28, 2023

Med's for my Cats

This was our first use of Cheristin for Cats. The previous medication used for flea treatment caused one cat to have such a severe reaction that for months he literally chewed and scratched himself up, to the point of bleeding. It's taken him 3 months to recover. The Cheristin did not cause him to react as he had before. Now all the cats seem less irritated by the Cheristin medication.

Rated 5 out of 5 stars
By Allie on Jan 6, 2023

LOVE the new applicator!

So I’ve been using this for 2 years and I really love it! For those saying they struggled to get it open, towards the beginning of last year the applicator now just twists open, the cap doesn’t come off anymore, it’s a twist and squeeze type of thing which I appreciate as it makes it less messy when tossing as it stays in one piece and I’m not picking up a cap that I had to get meds on to open. If you keep up with the doses it’s an amazing product thank you!

Rated 4 out of 5 stars
By wendy on Dec 31, 2022

packing could be better

always happy with how prompt my supplies get here, but every time I order small items like flee treatment or delectables its packed in the same box as the heavy cat litter and gets smashed, the cheristin packs were all over the place and i had to search foe all the doses which are small ane a few slipped into the cardboard packaging

Rated 5 out of 5 stars
By Bippysmom on Dec 1, 2022

Gave relief to itching cats.

Great product! I bought Cheristin for my cats when they got fleas from the local raccoon, squirrel and possum that visits our area. It started killing the adult fleas fast and with daily vacuum and combings, yes some of my cats love to be vacuumed 😻😂 The fleas are gone and my cats are happy. I really like the 6 vial package. I do hope they develop a formula that kills all the life stages of the fleas in the future. 🤞

Rated 5 out of 5 stars
By MommaPaws on Dec 11, 2022

Packaged shipped

When I order 2boxes of kitty litter and yeah they ship this product ever time in the same box of 50lbs. My Cheristin gets smashed yes the little bottles get smashed every time. As usual i have to order 50.00 work of product to get free shipping. PLEASE STOP SHIPPING MY CHERISTIN IN THE SAME BOX WITH THE 2 25POUND BOXES OF KITTY LITTER. THANK YOU.

Rated 5 out of 5 stars
By Sazzy33 on Dec 17, 2022

Good Flea Stuff

My husband got a cat from his nephew Cat had kittens, He bought home our car, he never had fleas I bought this 2 prevent him from having fleas, we do give him baths with Fleaa Shampoo. Our cat he's an indoor cat. He's 9 months old now, we had him 5 months now, he never had no fleas so far!!!!!

Rated 3 out of 5 stars
By Cece on Jan 16, 2023

Product seems ineffective

Cheristin doesn't seem to be as effective as it once was. I'm disappointed because it use to keep my cats flea free for months. I don't think it worked for a week this time.

Rated 5 out of 5 stars
By BrandyG on Nov 22, 2022

It works, but doesn't kill flea eggs

So this product definitely worked for my cats. They got fleas two summers ago. I used capstar in combination with this medication and also did all the normal flea cleanup indoors. Within a few weeks the fleas were gone. I have continued to use this product every 5 weeks as instructed, and the fleas have not returned. I see people leaving bad reviews, but I think they don't understand that this product does not kill flea eggs on your pet or in your home. You need to treat your home for flea eggs and use this product on your cat. This will kill adult fleas and any new ones that hatch. For the eggs that are likely all over your house? You need to take care of those (vacuuming works best). If you don't they will continue to hatch, then jump on your poor cat, at which point cheristin will kill them, but this obviously is not an efficient way handle an infestation and will take months to resolve if this is all you do.

Rated 1 out of 5 stars
By Patti on Nov 13, 2022

Product does not work

Cheristin does not work along with Advantage Plus and Frontline Plus. Since Elanco bought out, none work any more. Trying to find something for my feral cat that I have taken care of for 14 years, but I cannot take her to a vet to get a prescription for Revolution Plus, so I am at a loss on finding something that works.

Rated 4 out of 5 stars
By Donno on Nov 27, 2022

Flea Medss

Just started treating our cats with this product,so time will tell . Found the caps used are not the best as it is hard to tell when it is open, cats get jumpy when applying so needs to be there when ready,