Cox Vet Lab Acti-Flex Pellets Horse Supplement

By Cox Vet Lab
Rated 4.7647 out of 5 stars


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$178.95Chewy Price
$260.60Chewy Price
$170.00Autoship Price
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Arrives between Dec 04 and Dec 12

About This Item


  • Helps support joint function and connective tissue health in all classes of horse.
  • The alfalfa taste is one that your horse is sure to love.
  • Contains chondroitin, glucosamine, MSM and HA to support your horse’s joint and tissue health.
  • The pellet formula allows for no-mess and no-fuss, free of difficult injections.
  • Made in the USA.

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Nutritional Information

Feeding Instructions

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This Item – Cox Vet Lab Acti-Flex Pellets Horse Supplement, 16-lb bucket
Rated 4.7647 out of 5 stars
$178.95Chewy Price

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Top IngredientsActive Ingredients: Glucosamine Sulfate 8, 000 mg, Chondroitin Sulfate 4...Active Ingredients: Glucosamine Sulfate 8, 000 mg, Chondroitin Sulfate 4...Active Ingredients: Flaxseed 11g, Rice Bran 5.6g, Glucosamine HCI (Shellfish Source) 10...Active Ingredients: Glucosamine Hydrochloride (Shellfish), Methylsulfonylmethane (MSM), Chondroitin Sulfate (Bovine)...Glucosamine Hcl And Chondroitin Sulfate With Manganese And Ascorbic Acid....
Health FeatureHip & Joint SupportHip & Joint SupportHip & Joint Support, Muscle CareHip & Joint SupportHip & Joint Support
Food FormSupplementSupplementSupplementSupplementSupplement

Questions & Answers

3 Customer Questions

Are these loose pellets or the individual packets?
Answer by ChewyFeb 04, 2022
This supplement comes as loose pellets with a scoop.

How many servings in this container?
Answer by ChewySep 17, 2021
There are approximately 80 scoops in the 5-pound bucket and approximately 256 scoops in the 16-pound bucket.

How many ounces are in the scoop provided?
Answer by ChewyJun 22, 2021
Each scoop equals to 1 ounce.

ReviewsWrite a Review

Rated 4.7647 out of 5 stars
17 Ratings
Would recommend to a friend

17 Customer Reviews

Rated 5 out of 5 stars
By Paulette on Oct 30, 2023

Happy horse

My 22 year old flat shod Tenn. Walking Horse has used Acti-flex for almost nine years. We've put a lot of miles one in four western states and Canada. She is just as eager to go out on trail today as she was when I got her 10 years ago. She is an athlete who needs good care and good nutrition. Acti-flex is a key component, in my opinion, to her continued good health.

Rated 5 out of 5 stars
By Bridgette on Jul 15, 2023

Absolutely love this stuff!

My mare goes little old lady to spring chicken on this stuff! The pellets also keep the mare stare at bay. Absolutely worth the price and a solid investment.

Rated 4 out of 5 stars
By Heather on Jun 7, 2023
Top 500 Contributor

One horse likes it

One star removed, as not as palatable as some other joint remedies. Working well on a senior ex-race horse. Not sure if I will purchase again.

Rated 5 out of 5 stars
By Taylor on Jun 26, 2023

My 6 yo ottb does fantastic on this joint supplement and it's so reasonable.

Rated 5 out of 5 stars
By Harold on Dec 5, 2022

Good product reasonable cost

This is a new product I am trying, my horse eats it in his grain without any issues, he is totally sound, will wait to see long term effects. Product had higher doses of joint ingredients and much cheaper than brand I have been using.

Rated 5 out of 5 stars
By Kelso on Oct 14, 2022

Hidden Secret

I have my 22 yr old gelding and 4 yr old mare on this and can't say enough good things about it. Both horses have great range of motion and healthier (and active) from it. Are there "better" products out there, yes, but that also comes at a greater cost. Acti-flex has the highest content of the "Big 4" joint and tissue support with an adorable price tag of 70 cents per day. Value within budget.

Rated 3 out of 5 stars
By SageMorgans on May 2, 2022

Maybe it is helping? Maybe not?

I have been feeding this for a bit over 2 weeks now at the loading dose. Is it helping? Maybe. I am going to give it a fair trial as the next step would be my vet doing a full old-age lameness exam with possible injections as the answer and/or going to pain management. This horse is a puzzle as he moves sound, showing no problem, but he stands with one front leg out in front of himself. He is old enough and has awesomely crooked legs so probably has arthritis everywhere. In the last few days, I have seen him standing square more often than not. These are nice pellets which he happily eats.

Rated 5 out of 5 stars
By GSD24 on Feb 26, 2022
Top 500 Contributor

Seems to be working good

Switched to this after using a different brand for several years. This is a better price, easy to feed with grain, and for my 28 year old it has higher amounts of the same ingredients in one serving plus a couple of added ingredients not in the other brand, so hopefully it will keep her comfortable. I will keep supplementing with added MSM however as the combo works best for her.

Rated 5 out of 5 stars
By KCHB on Apr 19, 2022

Acti-Flex product

I have been giving this supplement for a few years to our older horse at the recommendation of a trusted friend. It has helped his joints stay flexible and he likes the taste.

Rated 4 out of 5 stars
By stock on Feb 24, 2022

Easy to feed

I switched to the pellets from the liquid my horse eats them up even if not in his feed and he's a super picky eater.