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Best-Flex HA®

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

1943 reviews. 4.9 / 5
  • Reviews
  • Technical
  • Feeding Guide
Guest - 18/04/2025 20:31
Would not be without Best-Flex-HA! Keeps the old boy enjoying life! I have tried others but this is by far the best for m horse. Highly recommend.
Guest - 18/04/2025 08:12
I have recently had 2 horses diagnosed with early arthritis and my vet recommended using a joint supplement. Having researched the advised daily amounts of glucosamine,  condroiton,  MSM and HA  Feedmark Best Flex contains all that we need and is the best value for money.
Guest - 18/04/2025 00:05
Seems very good and horse seems to like the taste snd she is quite fussy.

For a horse with arthritis she is looking and feeling really good at the moment.
Sara - 17/04/2025 20:33
Brilliant product
Guest - 17/04/2025 19:32
Excellent product I have all four of my horses on it from 7 year old to 20 year old and they all feel great
Guest - 17/04/2025 19:19
I’ve used Best-Flex HA for a few months now and it is really supportive with my older ponies. One for arthritis and another as an age support/preventative. They love the taste and don’t leave a trace!
Sue - 17/04/2025 07:49
As always a fast friendly service. Best-Flex HA is the best joint supplement for my horse.  Actually works.
Guest - 16/04/2025 19:22
Just started using it so not long enough to see how well it works but it seems quite palatable - my mare is very fussy with additives in her feed but so far she is eating it fine
Leah - 16/04/2025 19:20
It’s the best joint supplement out there and my horse eats it’s straight away so it’s good for fussy feeders too!
It’s Bert approved!
Guest - 16/04/2025 18:37
My horses, all elderly have been on this product for a number of years. I believe it helps with their mobility.

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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