Extra-Flex HA®

Jane - 26/10/2025 11:04

I have been feeding my horses ExtraFlex to support their joint health for many years. It has the optimal level of active ingredients, is palatable and seems to do the job!

Carol - 25/10/2025 22:33

Supplements that actually work. Good, fast delivery. Value for money.

Guest - 20/10/2025 18:05

Great product! Currently using alongside rehabbing my dressage horse. It’s been a great supplement to use as she comes back into work and will continue to use as maintenance once back in full work.

Guest - 18/10/2025 09:44

Great product and prompt delivery

Guest - 17/10/2025 17:44

Quality products, good price, quick delivery. Effective.

Guest - 14/10/2025 19:39

Great product, had my horses on it for years.

Sara - 12/10/2025 20:26

Would recommend best flex brilliant product.

Heather - 07/10/2025 18:52

A highly palatable supplement which is great for competition horses. Easy to order and quick delivery.

Guest - 07/10/2025 08:50

Very quick delivery, packaged well and the horses are eating it in their feeds. Too early to tell if it’s helping their joints yet.

Guest - 07/10/2025 08:47

I’ve had my 20year old horse on this for a few years. He’s had a few injuries and I believe that being on this supplement has helped his recover and maintained his joint health.

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Nutrition Information

Glucosamine hydrochloride (HCl) and Chondroitin sulphate are well documented joint health ingredients used by the body to help maintain articular cartilage and joint function. These are complemented by Hyaluronic acid, which works within the joint capsule to support the joint and aid shock absorption, and Methyl sulphonyl methane (MSM), which supplies sulphur that is required to provide strength to articular cartilage and has antioxidant properties which helps to mop up free radicals. In addition to these, a generous helping of Rosehips is included in this horse joint supplement, as these are a powerful natural antioxidant for optimum joint health to help with tired horse joints, caused by age or wear and tear. These Rosehips provide naturally occurring Vitamin A, C and K to help potentiate the effects of the nutraceuticals, supporting the horse's formation of cartilage and connective tissue.

Please note: The number of days each size tub will last depends on the weight of your horse and your chosen feeding rate. The 'Days Supply' indicated in a guideline only.

Micronutrient Analysis	Per 3 scoops (90g)
Rosehips	30,000 mg
Glucosamine HCl	12,500 mg
Chondroitin sulphate	1,000 mg
Hyaluronic acid (HA) as Sodium hyaluronate	400 mg
Methyl sulphonyl methane (MSM)	10,000 mg

Composition

Rosehips, Micronised linseed, Glucosamine HCl (vegetarian), Methyl sulphonyl methane (MSM), Grass meal, Chondroitin sulphate (90%, low molecular weight), Sodium hyaluronate (HA).

Analytical

Moisture	16.0%
Crude protein	16.3%
Crude oils & fats	8.8%
Crude fibre	20.2%
Crude ash	3.7%
Acid insoluble ash	4.8%
Sodium	0.4%

Feeding Guide

Weight of Horse/Pony	Amount per day Optimum Rate (increased support including hard work)	Amount per day Maintenance Rate (general support)
Up to 250kg	1 ½ scoops	¾ scoop
250kg - 400kg	2 scoops	1 scoop
400kg - 600kg	3 scoops	1 ½ scoops
Over 600kg	4 ½ scoops	2 ¼ scoops

1 level (50ml) scoop of ExtraFlex HA weighs approximately 30g.

ExtraFlex HA is safe to feed long term, and results may take some weeks to become apparent.

Feed supplements should be fed according to body weight. Introduce to the horse's diet gradually, splitting between feeds (when applicable).

ExtraFlex 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.

Does Extra-Flex HA still contain MSM, Glucosamine, Chondroitin, and HA, similarly to Best-Flex HA?

Yes, Glucosamine and MSM are still included in Extra-Flex HA® to support your horse's joints and mobility, however, for a higher specification try Best-Flex HA®.

How many scoops of Extra-Flex HA do I feed my horse?

We base our feeding rate off your horse's body weight and Extra-Flex HA® is fed per day depending on workload. Check out our feeding guide section to see how many scoops your horse needs for optimal support.

What vitamins are included in Extra-Flex HA?

Vitamin A, C and K naturally occur in the Rosehips included, which help support your horse’s cartilage and connective tissue.

High spec horse joint supplement with significant levels of proven ingredients.