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Flexamine 10:10™

Everyday support for joint health maintenance

31 reviews. 4.7 / 5
Anne - 07/06/2023 17:17
Like all the feedmark products i have used over the years  it worked.
Paul - 13/03/2023 12:30
Keeps my pony able to trot even on cold winter days
Marie - 15/12/2022 14:40
Seems work well help my boy
Trusted Feefo Customer - 18/07/2022 05:22
Used this product for years with great effect. Well done Feedmark.
Trusted Feefo Customer - 16/06/2022 14:06
Have been using this product for over a year.  Helps with stiffness when first setting out on a hack after being stabled overnight.
Trusted Feefo Customer - 30/05/2022 13:26
This product is easy to feed and our horses seem to do well on it.
Amelia - 14/04/2022 20:53
Keeps my 22 year old flexible and feeling like a 5 year old!
Trusted Feefo Customer - 30/12/2021 17:15
Seems to help my pony’s joints all year at 38 he was getting a little stiff but now his movement is more fluid
Trusted Feefo Customer - 29/07/2021 16:30
Horse appears more comfortable on Flexamine. He has OCD of the stifle and I think this helps keep him more supple.
Xenia - 28/06/2021 08:58
This is something I have only just started using now 2 of my horses are 20, just for a little bit of extra support for them even though they are both super fit & well.
Heather - 22/11/2020 19:52
Fantastic for my arthritic gelding
Stephanie - 31/08/2020 19:12
Have been using this for many years, never had any issues
Trusted Feefo Customer - 13/08/2020 08:07
Just started it but my horse already feels happier
Stephanie - 26/07/2020 11:55
Have been feeding Flexamine 10:10 for many years without any issues. Good product.
Corinne - 21/05/2020 07:46
I’ve only just started using this product but the delivery time was good and it was easy to order.
Trusted Feefo Customer - 01/05/2020 08:25
Stephanie - 29/03/2020 18:04
Excellent supplement, have been using it for our horses for over 10  years
Trusted Feefo Customer - 15/01/2020 17:19
Trusted Feefo Customer - 28/12/2019 19:02
Keeps my old horse supple and comfortable
Sadie - 23/12/2019 11:59
An excellent product that I feel helps our little mare.
Stephanie - 15/12/2019 15:39
Great product, have been feeding thise to our horses for many years,wouldn't use anything else.
Lauren - 07/10/2019 11:41
Great joint supplement at an affordable price.
Stephanie - 28/07/2019 10:18
Good product, no problems with horse eating food with this supplement
Trusted Feefo Customer - 25/07/2019 12:51
The good thing about this is that you don't have to feed large quantities, which is great for horses that are a bit fussy with their food! It also makes Flexamine a cost effective supplement and it contains all the key ingredients for joint health, so I'm happy to give it a try.
Trusted Feefo Customer - 10/04/2019 11:19
Just amazing, perfect products
Stephanie - 07/04/2019 15:32
Have Ben using this for many years, excellent product
Barbara - 10/01/2019 13:07
I have used 10/10 on my 18yr old gelding for a few years now and he is doing very well on it.
Ian - 30/07/2018 12:31
Have used glucosamine on all our horses from the time they are first backed.
None of those horses has shown any sign of arthritic problems. One of them is 22y.o.
Ann - 19/02/2018 10:31
Does the job at a good price
Graham - 23/01/2018 20:37
All previous supply's of this product have been lovely and dry even when ordered/delivered in inclement weather. This batch appears quite moist and lumpy. So much so there are large chunks in tub and you cannot give a level spoonful, so this will be used quicker. Hopefully next batch will be better if not I will go elsewhere.
Ian - 09/10/2017 15:02
See previous comment.
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Nutrition Information

Glucosamine hydrochloride (HCl) is used by the body to maintain articular cartilage and joint function.  Providing a dietary source of Glucosamine HCl helps to support the horse’s natural shock absorbing system and allow supple and fluid movement.  Methyl sulphonyl methane (MSM) works alongside Glucosamine supplying Sulphur that is required to provide strength to articular cartilage, and by neutralising free radicals due to its antioxidant properties. Both of these ingredients are included to provide the recommended 10g each per day if fed at the optimum serving rate.


Glucosamine HCl (vegetarian) (55%), Methyl sulphonyl methane (MSM) (44%).


  Additive number per kg
Anti-caking agent    
Silicic acid  (E551a) 15g


Moisture 44.5%
Crude protein 21.9%
Crude oils & fat <0.1%
Crude fibre 0.1%
Crude ash 1.4%
Sodium <0.1%

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 ¾ scoops ¾ scoops
250kg - 400kg 3 ¼ scoops 1 ¾ scoops
400kg - 600kg 5 scoops 2 ½ scoops
Over 600kg 6 ½ scoops 3 ¼ scoops


1 level (5ml) of Flexamine 10:10™ weighs approximately 4.6g

5 scoops contain 12.5g of Glucosamine HCl providing 10g of actual Glucosamine, and 10g of MSM.


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

Flexamine 10:10™ 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