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Best-Flex HA®

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

2220 reviews. 4.9 / 5
  • Reviews
  • Technical
  • Feeding Guide
  • FAQ
Guest - 21/07/2025 20:59
Amazing product where the difference is clearly seen. Highly recommend
Guest - 21/07/2025 20:07
I have two oldies on Bestflex. The 25 year old is more flexible than when we took him on loan aged 16 and I put this down to Bestflex. Our other horse is 33 and still pinging about. She does have slightly arthritic pasterns but is comfortable and on no pain relief.
Guest - 21/07/2025 19:29
Everything your horse needs for their joints all in one pot and happily eaten by my horse.
Linda - 21/07/2025 19:18
Finnegan was very happy to see his delivery of best flex
Guest - 20/07/2025 21:35
Great product!
Pauline - 20/07/2025 20:04
I have been feeding best flex ha to my 25 year old section d for a couple of years. I  find it helps with joint stiffness and mobility. He is still hacked out 2/3 times a week mostly at walk but he's still up for a faster pace, especially when we go to the beach!
Gillian - 20/07/2025 09:42
Used Feedmark products for many years and for different reasons. Changed to Bestflex HA because of content and seems to be working well for my 31 yr old IDX together with his Arthritis meds.
Guest - 19/07/2025 22:53
Fabulous product, full of the best ingredients
Sandra - 19/07/2025 21:21
Helps keep my old horse mobile.
Guest - 19/07/2025 20:54
Great supplement
The ingredients are everything my vet advised me to look for and in higher amounts than other supplements I was looking at!

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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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