21ST CENTURY ESSENTIAL PET Hairball Support Soft Chews Supplement for Cats, 100 count - Chewy.com

21st Century Essential Pet Hairball Support Soft Chews Supplement for Cats, 100 count

By 21st Century Essential Pet
Rated 3.5707 out of 5 stars
$9.75Chewy Price
$9.26Autoship Price
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About This Item


  • Veterinarian formulated to help reduce hairball buildup and help your cat pass hairballs more easily.
  • Crafted with ingredients to lubricate your cat companion’s digestive tract.
  • Made with a delicious chicken and cheese flavor your cat will go head-over-paws for.
  • 100% free of wheat, so cats with certain allergies and sensitivities can benefit from these chews.
  • Proudly made in the USA and tested in a lab to ensure quality.

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Nutritional Information

Feeding Instructions


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Top IngredientsActive Ingredients: Mineral Oil, Inactive Ingredients: Brewer's Dried Yeast, Calcium Propionate...Active Ingredients: Psyllium Husk, Omega-6 Fatty Acids (Flaxseed, Hemp...Corn Starch, Brewers Dried Yeast, Natural Chicken Liver Flavor...Brewers Dried Yeast, Natural Chicken Liver Flavor, Glycerin...Rice Flour, Glycerin , Corn Starch...
LifestageAdult, Senior, KittenAdultAdult, SeniorAdult, Senior, KittenAdult
Food FlavorUnflavoredUnflavoredChicken, PoultryChicken, Liver, Poultry, MeatSalmon
Health FeatureHairball ControlHairball ControlHairball ControlHairball ControlHairball Control
Food FormSupplementSupplementSupplementSupplementSupplement

Questions & Answers

9 Customer Questions

How many treats per day?
Answer by ChewyApr 26, 2019
The recommended daily feeding instructions for this supplement is 1 soft chew for cats weighing up to 10 pounds, 2 soft chews for cats weighing between 11 and 30 pounds, and 3 chews for cats weighing over 30 pounds.

Can this be used for dogs? If not, can you recommend a hairball treatment for dogs? I have a Siberian Husky who gets hairballs during the "moulting season".
Answer by ChewyJul 07, 2020
This product is not intended for dogs.

Is Rosemary Extract safe for cats?
Answer by ChewyJun 14, 2019
When used in small and controlled quantities, rosemary extract can serve as a natural antioxidant and preservative.

What are ingredients
Answer by ChewyApr 29, 2020
For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos.

ReviewsWrite a Review

Rated 3.5707 out of 5 stars
205 Reviews
Would recommend to a friend

205 Customer Reviews

Filter by reviews that mention

Rated 3 out of 5 stars
By Kirara on Aug 27, 2022

Smell Bad!!

The smell immediately got to me! I opened the tub and was smacked in the face by "ewwwww"! Not sure if they work because 4 out of 5 turned up their noses. We tried for a week, but they won't eat them. The one that did, is a special case, she will eat anything, including plastic. I had an issue when the first tub arrived, they had been packed with a 40lb box of litter and got squished. So I called and was sent another tub, so I'm grateful for that. I gave 3 stars because they may work for others and my cats are picky.

Rated 1 out of 5 stars
By KMP50 on Nov 11, 2022

Not worth it

My cat had these one or two days, then wouldn't even look at them again. I'm stuck with 98 chews. I'm giving them to another cat outside my house - he'll "eat anything"

Rated 1 out of 5 stars
By Jill on Sep 21, 2022

Hairball treats

The person I spoke to on the phone said her cats loved them so I figured that would be good. I have 4 cats and not one of them will eat them. Sophie ate one the first day but hasn't touched them since. I crush them up and put them in her canned food because she sheds a ton and the other 3 just won't touch them.

Rated 1 out of 5 stars
By jakethecat on Nov 7, 2022

certainly not soft

had forgotten about this item until chance to review appeared..NOT soft.......my 14 year old buddy did not attempt to bite.....donated to food pantry

Rated 1 out of 5 stars
By Jackie on Sep 8, 2022

Not so hot

I have cut these treats in four pieces. I have mixed them up with other treats that they eat. And they pick out every last piece and leave it. I'm really disappointed because they honestly need this to help them with their hairballs. If you have any way of getting them to eat them, I would appreciate it.

Rated 1 out of 5 stars
By CatLadyMech on Oct 8, 2022

3 cats - all rejected them

I bought these treats for my 3 cats and none of them will touch them. They smell them and walk away. Waste of money. They love the Greenies hairball ones I get. So I’ll just get more of them.

Rated 1 out of 5 stars
By dmclalin on Nov 19, 2022

Essential Pet Hairball Support Formula

My cats won't eat them or go near them. It was a waste of my money. I try to brush them 2 times each day/

Rated 5 out of 5 stars
By Kitty on Sep 15, 2022

Works great!

I ordered this product after trying others and my cats prefer this. My cats did not like the flavor or texture of the other brands. I will re-order when I run out.

Rated 5 out of 5 stars
By SophiesHoomans on Dec 4, 2022

Picky Cat Eats These

puuuuurrrr Sophie eats these along with Purina Salmon and Rice

Rated 4 out of 5 stars
By Kayla on Aug 24, 2022

Picky Cats

My cats did not personally care for these treats. One cat refused to try and one cat ate with reluctance and a stink eye. Product seemed to be of fine quality, but not suited for picky pets.