ExtraFlex HA®

Joy - 08/11/2026 20:05

I'm not sure if this helping my 34 year old mare yet or not because she's not been on it long. However, it's been recommended to me so I'm keeping my fingers crossed.

Clare - 05/11/2026 22:06

My 19 year old cob has been on ExtraFlex HA for over 6 months now and no one can believe his age. We do dressage together and he moves like a horse half his age.

Guest - 04/11/2026 18:52

Love the fact it comes each month on subscription

Guest - 03/11/2026 18:38

I’ve been using this product for many years, my ponies front knees would click when she was walking and sometimes she would drop down on one of her front legs, so I tried her on this product and she hasn’t had a problem since.

Guest - 29/10/2026 18:15

Extraflex seems to really help and when mentioned to my vet was advised it was a good product to support our pony’s arthritis

Guest - 26/10/2026 19:42

Used for many years for my veteran ponies. Helps to keep them supple and active.
The product is well priced.

Cindy - 26/10/2026 06:08

Fantastic product which has certainly reduced stiffness. My farrier also commented on the increased flexibility in my horse aged 21, this supplement really makes a difference.

Moira - 25/10/2026 20:13

Very happy with this product for supporting joint mobility

Louise - 20/10/2026 12:23

I would definitely recommend as both my horses seem to be happy on it and ordering delivery as very easy

Clare - 19/10/2026 19:23

Excellent service and great product.
Our 25 year old horse feels almost as good as new!

More reviews will load without leaving this page.

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.