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Best-Flex HA®

The world’s best equine joint supplement - read the reviews!

2144 reviews. 4.9 / 5
  • Reviews
  • Technical
  • Feeding Guide
  • FAQ
Dani - 27/06/2025 09:11
I have two horses, one is now 18, a Traditional X Welsh cob and struggles with stiffness in the hips. My Equine Physio recommended Best Flex HA and it has made a real difference to his movements. My other horse is 30 years old (Irish Draft X TB) and we have battled arthritis in her rear fetlocks since she was 12. Thanks to Best Flex HA, we haven't needed any form of pain relief and her movements are fluid. It may seem expensive, but it is worth every penny.
Guest - 27/06/2025 08:29
I love Best Flex Alpha been feeding it for many years to prevent any potential joint issues on my heavyweight girl. Always good service
Sandra - 26/06/2025 14:46
My horse has been on Best Flex for a number of years now and it is the only joint supplement that seems to help him. I have tried others, even a more expensive one and none are as good as Best Flex.
Susan - 25/06/2025 14:45
Great product and feed it to all my horses, as its the only joint supplement I've ever seen a discernable difference with?
Guest - 24/06/2025 22:58
Very palatabl product. I have put my mare on this following nutritionalist advice as a preventative joint supplement!
Charlotte - 24/06/2025 20:56
Very positive results will buy again
Guest - 24/06/2025 19:10
i used this company for same time now and they are very helpful
Guest - 23/06/2025 22:50
Works well for semi-retired horse letting him fit enough to stay in ridden work
Guest - 23/06/2025 21:09
I’ve been using Best Flex Ha ever since my horse was diagnosed with a suspensory injury over 2 years ago. I’m delighted with the way he moves he has fabulous paces and movement.
Jane - 23/06/2025 19:53
Honestly one of the best products i have used. My boy is 26 and this product has massively helped his joints. I would totally recommend this supplement.

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Nutrition Information

The scientific basis of our Best-Flex HA® formulation: It has been shown through multiple scientific studies and published clinical evidence that oral supplementation with joint nutraceuticals can be beneficial in supporting joint function, flexibility and overall suppleness. Glucosamine hydrochloride (HCl), Chondroitin sulphate, Hyaluronic acid (HA) and Methyl sulphonyl methane (MSM) are the well researched ingredients proven to provide significant results. Additional helpful joint nutrients include soothing foods such as Boswellia and those rich in Omega-3 polyunsaturated fatty acids. Vitamin C is included for its antioxidant properties that help to neutralise free radicals. Other manufacturers may choose to include other, sometimes peculiar, ingredients to make their formulation different - these ingredients may not be so well researched or proven and may have consequences if fed above certain rates or on a long term basis. Best-Flex HA® is SAFE to feed at increased levels and for extended periods of time for horses that may require additional support. Furthermore, Feedmark's CPI policy (Continuous Product Improvement) ensures we are constantly updating our formulations to provide the latest beneficial ingredients based on our experience, research and trials - we have 40 years of excellence in equine nutrition under our belt.

In line with our promise to always provide the best possible products, we source the finest quality Boswellia we can from suppliers aligning to the same strict feed assurance schemes as ourselves and with the highest possible levels of Boswellic acid. 

 

Micronutrient Analysis

 

Active Ingredients                                                            Per 3 scoops:                                                
Glucosamine HCl 17000 mg
Chondroitin sulphate 6500 mg
MSM (Methyl sulphonyl methane) 17000 mg
Hyaluronic acid (Sodium hyaluronate) 1100 mg
Vitamin C 11000 mg
Omega-3 fatty acids 7000 mg
Boswellia  12000 mg

 

 

Composition

Micronised linseed, Glucosamine HCl (vegetarian), Methyl sulphonyl methane (MSM), Boswellia, Chondroitin sulphate (90%, low molecular weight), Linseed oil, 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 level (50ml) scoop of Best-Flex HA® weighs approximately 30g.
A 2.7kg tub fed at 3 scoops (90g) per day will last approximately 30 days.

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

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