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Best-Flex HA®

Probably the world’s best horse joint supplement - read the reviews!

1879 reviews. 4.9 / 5
  • Reviews
  • Technical
  • Feeding Guide
Guest - 24/03/2025 20:27
Highly recommend Best-Flex HA. Flexibility and movement have improved amazingly  in just four months.
Eva - 24/03/2025 18:09
My boys doing well and quick delivery 👏
Guest - 21/03/2025 19:22
Excellent product, great delivery , fair prices
Guest - 20/03/2025 19:54
I have a very large 23 year old horse that in previous years has felt rather stiff in his joints through the winter. However since using Best Flex he has continued to move with enthusiasm throughout this winter.
Judy - 20/03/2025 19:43
My Boy has been on this supplement for several years.
He was diagnosed with arthritis 11 years ago and the Vet wasn’t sure how long I would be riding him.
Twenty nine this year and still going strong. He’s had a break from being ridden for 6 months while I’ve had problems with my hip culminating in a hip replacement for me, but we’re back out and about again now.
Think I’ll try it myself!
Guest - 20/03/2025 19:40
My mare has hock arthritis I was using Boz Merix but changed to Best Flex.  Since changing she has been sound and to date I have avoided the necessity of further injections which I am trying to avoid.  I have been extremely pleased and will continue to use Best Flex.
Guest - 20/03/2025 18:25
I’ve been using BestFlex for about a year on my older horse. He has some arthritic changes and was becoming a little stiff. He is now bounding round the field and looks amazing!
Faye - 20/03/2025 06:20
I have been using Best Flex Ha for a few weeks now after taking a break with another supplement and I definitely feel that my horses mobility is better while on it.  Will continue with Best Flex.
Guest - 19/03/2025 08:52
Excellent product, my horse was recently diagnosed with arthritis in her knee and coffin joint and has been fairly uncomfortable, I have seen an improvement after only a couple of weeks of feeding this so will certainly be ordering more.
Guest - 18/03/2025 18:37
Excellent product
I have had great results with my arthritic mare

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Nutrition Information

Maintaining joint health is essential for all horses, particularly those in regular work, older horses, or those competing at high levels. Exercise and the natural aging process can put strain on the joints, making high-quality joint nutraceuticals a valuable addition to support your horse's mobility, flexibility, and overall comfort. 

Repetitive concussive forces on the joints are a leading cause of joint wear, contributing to cartilage degradation and synovial membrane irritation. This can trigger an inflammatory response, which, if excessive, may overwhelm the body’s natural repair mechanisms, potentially leading to long-term joint issues.

Best-Flex HA is a scientifically formulated equine joint supplement designed to provide comprehensive joint support. It contains high levels of Glucosamine HCl, Chondroitin Sulphate, and Hyaluronic Acid (HA) - key nutrients that help maintain cartilage integrity and support synovial fluid. MSM is included for its role in supporting tissue elasticity and overall joint function. Additionally, Boswellia offers natural soothing properties, while Omega-3 polyunsaturated fatty acids support a normal inflammatory response. Vitamin C contributes antioxidant benefits, helping to maintain the neutralisation of free radicals and support joint tissues.

By delivering these essential nutrients in an optimal balance, Best-Flex HA® helps maintain joint structure, flexibility, and long-term mobility. Continued daily use throughout your horse’s active career ensures a steady supply of fundamental joint nutrients to support flexibility and performance. For veteran or retired horses, Best-Flex HA® helps soothe the joints and supports ease of movement. It is also safe to feed at increased levels and over extended periods of time for horses that may require additional support.

 

Micronutrient Analysis

Active Ingredients Per 3 scoops:
Glucosamine HCl 18000 mg
Chondroitin sulphate 6500 mg
MSM (Methyl sulphonyl methane) 18000 mg
Hyaluronic acid (Sodium hyaluronate) 1100 mg
Vitamin C 11000 mg
Omega-3 fatty acids 11000 mg
Boswellia  12000 mg

Composition

Micronised linseed, Glucosamine HCl (vegetarian), Methyl sulphonyl methane (MSM), Boswellia, Linseed oil, Chondroitin sulphate (90%, low molecular weight), Sodium hyaluronate (HA).

Additives

Vitamins Additive number  per kg
Ascorbic acid 3a300 122g

Analytical

Moisture 21.5%
Crude protein 14.0%
Crude oils & fats 14.8%
Crude fibre 5.6%
Crude ash 2.2%
Sodium  0.5%

*Based on publicised maintenance rates for active ingredients for a 500kg horse. Correct at time of release. 

Feeding Guide

 

Body weight  Amount per day
Up to 250kg 1 Scoops
250kg - 400kg 2 Scoops
400kg - 600kg 3 Scoops
Over 600kg 4 Scoops

1 scoop (50ml) of Best-Flex HA® weighs approximately 35g.
 

Feed the recommended level, or as recommended by your veterinary surgeon.


The daily feeding rate can be adjusted based on your horse’s work load, age and mobility, to suit their long term daily requirements. Before and during a period of hard exercise, the daily levels can be increased to the next scoop level to provide extra joint support and may be continued on a long term basis for superior joint health support.

 

Best-Flex HA® is a complementary feeding stuff for equine animals. Feedmark uses nothing in the formulation of this product that contravenes FEI competition rules.

Learn more about competing within the rules by clicking here