ExtraFlex HA®

Rebecca - 21/05/2026 10:35

Great product. So easy to order with fast delivery.
The rosehip content is great. My horse eats it no problem.

Sandra - 19/05/2026 19:26

I use Extra Flex for my pony who has had surgery for bony cysts on his stifles. He has done really well since surgery and trotted up sound eight weeks post op.

Mandy - 16/05/2026 19:20

Have used this product for many years after receiving advice from a equine physiotherapist. My horse is now 20 and still charging around the field like a youngster. Always a quick delivery with an easy to use website.

Guest - 15/05/2026 20:03

Fantastic product, has helped my pony with fetlock arthritis

Sara - 05/05/2026 19:18

Brilliant product been using for a while would recommend.

Paula - 30/04/2026 20:57

Our 20 yr old pony is on his 3rd tub of Extraflex. He was really stiff in his hind quarters. Since being on the Extraflex, he is back to normal. No stiffness when being ridden or lunged. It's really worth the money to see him so full of beans!

Alison - 27/04/2026 19:04

Great product and service with very prompt delivery

Guest - 27/04/2026 18:37

Have been feeding this to my 23yr old new forest pony for approximately 6 months and would definitely recommend, as my boy is definitely generally less stiff and has a keen bounce back in his step.

Guest - 26/04/2026 19:21

Feedmark are a excellent, well established company I have used their products for years. Extraflex HA is popular in the market and Feedmark are a trusted company which are key factors for my reason for choosing their products

Guest - 26/04/2026 05:02

Great product my fussy horse WILL eat. Helps keep her moving into her old age. Fab service too.

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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.