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Best-Flex HA®

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

1839 reviews. 4.9 / 5
  • Reviews
  • Technical
  • Feeding Guide
Caroline - 07/03/2025 18:24
Best Flex is very palatable and my horse seems to be more comfortable since being on it.  Also, the Customer Service team are very helpful.
Bryony - 07/03/2025 15:01
Have used this supplement f9r years and wouldn't change. Feemark deliver quickly woth great service, the supplement is easy to feed and palatable and I really see the difference for my horses joints. Would highly recommend. Also very reasonably priced. Great value for money
Guest - 05/03/2025 19:41
Quality products, and fast service. Had to contact customer service once and they were incredibly helpful.
Guest - 05/03/2025 18:57
Excellent service, love the products
Jane - 04/03/2025 21:15
I have been using product for sometime now and believe it has made a hugh improvement in my old boy who suffers from osteoarthritis.
Guest - 03/03/2025 19:26
My fussy boy will gobble this down with his dinner, he’s now 22 and loving life. We can see a real difference in him.
Guest - 03/03/2025 18:35
Excellent product  wouldn't use anything else
Guest - 03/03/2025 18:31
Excellent product would highly recommend.  Customer service is excellent
Guest - 03/03/2025 18:16
It has really helped my pony it's also very tasty 😊
Guest - 03/03/2025 09:21
This product is fed on a daily basis and appears to keep my elderly horses mobile and comfortable.

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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