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Best-Flex HA®

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

1959 reviews. 4.9 / 5
  • Reviews
  • Technical
  • Feeding Guide
Jessica - 23/04/2025 21:58
Think I’m seeing positive results! Will keep using it
Emma - 23/04/2025 19:48
“Does what it say on the tin”
We have all 3 of our ponies on it. 2 cobs and a highland, all heavy breeds so hoping this just keeps the joints in top condition
Guest - 22/04/2025 21:19
Great service and product, my horse is always suspicious of stuff in his feed but he never gives his feed a second glance with feedmark.
Guest - 22/04/2025 19:52
Even my fussy eater loves it. Great supplement keeping my horses supple and sound.
Michelle - 22/04/2025 19:33
Fantastic product
Guest - 22/04/2025 15:37
After trying three other well know brands (two being prescription only) that my horse refused to eat, we tried this. Yay, she's eating it and seven months after hock and SI joint medication she is still sound and in work. It seems like its doing what it says on the tin. Thank you Feedmark.
Patricia - 22/04/2025 13:38
I have been using this product for several years now and it helps my mare with her joint mobility.  Feedmark provide a good service & I recommend them.
Izzy - 21/04/2025 23:15
This is a regular order now and have started to buy refill bags. Has helped my old boy so much! Will be buying frequently! Love this product!
Guest - 21/04/2025 20:46
Feedmark Best Flex H is way above any other supplement for joints for my horses. Having tried many different manufacturers from cheap to expensive ones my mare has been on this one for a while now and the difference it has made is amazing
Gill - 21/04/2025 10:45
Excellent product, efficiently delivered and seems to do what it promises - horse remaining sound despite growing older!

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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