Farnam MaxFlex XR Extended Release Horse Joint Supplement, 0.9375-lb jar

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About This Item

Details

  • Joint supplement designed to work around the clock.
  • Extended release system is activated by moisture in the digestive tract.
  • Helps to keep glucosamine in your horse’s system for 24 hours.
  • Helps to deliver all-day-long support to your horse’s joints.
  • Packed with 5,000 mg of glucosamine, plus chondroitin sulfate, hyaluronic acid and MSM.

Ingredient Information

Feeding Instructions

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Questions & Answers

1 Customer Questions

What form is this in? Powder or pellet?

Answer by Chewy • Jan 18, 2024
This supplement is in a powder form.
Reviews
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4.4
Rated 4.4 out of 5 stars
18 Ratings
Terms & Conditions

12 Customer Reviews

Rated 5 out of 5 stars
By Jennifer on Dec 19, 2025

She’s become sound on this

Vets said she needed injections but I have her on this and added MSM and she’s become sound. She likes the taste hasn’t refused it yet been on it over a year.

Vets said she needed injections but I have her on this and added MSM and she’s become sound. She likes the taste hasn’t refused it yet been on it over a year.

Rated 5 out of 5 stars
By JB on Nov 7, 2025

Really works

This stuff has helped my older tb way more than other supplements have. He’s not as stiff between rides. He’s been on joint supplements for years, and this was

This stuff has helped my older tb way more than other supplements have. He’s not as stiff between rides. He’s been on joint supplements for years, and this was noticeable.

Rated 4 out of 5 stars
By KATHERINE on Sep 4, 2025

Impressed, so far!

I do think I see a difference, and I'm not easily impressed by non- scientific data. But a friend said it was the one thing that seemed to work for her horse's

I do think I see a difference, and I'm not easily impressed by non- scientific data. But a friend said it was the one thing that seemed to work for her horse's arthritis. So I tried it. It's been less than a month which is why I don't go all out with stars. But I think I'm seeing a difference.

Rated 4 out of 5 stars
By Kaya on Nov 15, 2025

The ingredients

My horse actually eats this powder, which I sprinkle on top of her mash. I do wish the HA dosage was higher.

My horse actually eats this powder, which I sprinkle on top of her mash. I do wish the HA dosage was higher.

Rated 3 out of 5 stars
By Allie on May 30, 2025

Ingredients not completely advertised

Originally purchased under the assumption that there were no added sugar/molasses according to Chewy's list. I try to remain aware and avoid added sugar whenever

Originally purchased under the assumption that there were no added sugar/molasses according to Chewy's list. I try to remain aware and avoid added sugar whenever possible since it's in the majority of feed and supplements. As far as efficacy, I'm sure it delivers but I'm unwilling to continue using the supplement past the 30 day serving container purchased.

Rated 5 out of 5 stars
By Tina on Aug 18, 2025

I’ve used this for years.

My 27yo QH has been on MaxFlex XR since I got him as a 5 year old. He’s still going strong!

My 27yo QH has been on MaxFlex XR since I got him as a 5 year old. He’s still going strong!

Rated 5 out of 5 stars
By Marty on Oct 20, 2025

ease of fedding

Seems to keep senior horses moving better.

Seems to keep senior horses moving better.

Rated 5 out of 5 stars
By Jennifer on Jan 30, 2025

It works

I have a 13 yo. Mare, with arthritis in her hocks. Her movements are obviously smoother and more fluid on Macflex hr

I have a 13 yo. Mare, with arthritis in her hocks. Her movements are obviously smoother and more fluid on Macflex hr

Rated 5 out of 5 stars
By Nancy on Jan 23, 2025

Very palatable, easy to administer

Really helped Captain to move freely!

Really helped Captain to move freely!

Rated 5 out of 5 stars
By Joyce on Dec 3, 2024

Smelled good

My horses loved it

My horses loved it