ExtraFlex HA®

Guest - 28/07/2026 12:31

Always use this product have tried other brands but find this one the best for my horses 😊

Ruth - 27/07/2026 16:03

Works wonders on my 19 yr old - he will be on this for life

Rebecca - 24/07/2026 21:32

Great product. Easy to order and quick delivery.

Clare - 22/07/2026 08:13

Finn has been sound since we have been using the joint supplements- he seems to enjoy the taste too!

Alison - 21/07/2026 19:14

I think this is a great supplement to support my older mare in her dressage work.

Sandra - 21/07/2026 09:13

Extraflex HA helps keep my horses mobile and happy. Always good service from Feedmark.

Guest - 20/07/2026 22:37

Certainly noticed a difference in my 19 year old Cob since using Extraflex HA. He is feeling a supple and ready to work. He also seems to love the taste.

Louise - 20/07/2026 15:27

I have both my horses on this and it does seem to help. Feedmark are easy to order from and always prompt delivery

Guest - 15/07/2026 19:13

My 22yo is moving much more freely since using ExtraFlex. I thoroughly recommend it!

Kathy - 15/07/2026 06:58

Great product and service as always highly recommended

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Nutrition Information

Glucosamine hydrochloride (HCl) is a well documented joint health ingredient used by the body to help maintain articular cartilage and joint function. This is 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, a powerful natural antioxidant for optimum joint health to help with tired 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, optimising the 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
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, 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, 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.