Performance Flex PLUS

from £74.99

from 4 reviews

The ULTIMATE equine joint support!


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About Performance Flex PLUS

  • High Specification joint support for performance horses & those needing the ultimate level of support

  • Premium grade formula with naturally sourced ingredients, rich in antioxidants

  • Contains Boswellia to help soothe active or tired joints

  • Market leading levels of Glucosamine, MSM & Chondroitin *

  • Developed by vets & leading equine nutritional experts

  • Utilises L-Arginine known to aid protein break down in joint cartilage

The ULTIMATE equine joint supplement with the highest levels* and specifications of ingredients for joint health, mobility and elasticity.

We believe it is the BEST on the market* – No Compromise. 

  • Comparatively low feeding rates needed to achieve equine recommended daily nutritional requirement.
  • Contains no binders, fillers or low grade ingredients.
  • Performance Flex PlusTM contains the highest* level of active ingredient per gram of product across MSM, Glucosamine, HA and Chondroitin 

Key Ingredients:

Glucosamine HCI

Crucial in maintaining optimal joint function, supporting joint health and repair.


Supports joint health, soothes discomfort, and protects against detrimental changes that can occur during exercise


Helps enhance shock absorption, lubrication and joint integrity.


Is known to help reduce the breakdown of protein in equine joint cartilage. It has anti-inflammatory effects through strengthening of the immune system and supporting the production of Nitric Oxide which helps circulation and nutrient delivery to the joints.

Hyaluronic acid (HA)

An essential component of synovial fluid in joints which supports joint lubrication and helps to cushion joint impact.


Helps support joints by reducing the degradation of glycosaminoglycans, which help protect joints against deterioration.

Vitamin C

A powerful antioxidant that helps support joints by neutralising free radical damage associated with wear and tear.

Omega 3

Helps soothe and comfort active joints. Studies have shown that supplementing with omega-3 fatty acids can help reduce inflammation in the joints of horses, in both young and older horses.

Performance Flex PlusTM is a powerful, comprehensive and effective joint supplement for horses in competition, with a heavy workload, or with reduced mobility and challenged joints. It can also be used to maintain healthy joints and to help prolong your horse or pony’s happy, comfortable, working life. 

A horse’s joints need to act as shock absorbers during exercise and therefore supporting your horse’s joint health is essential.

The joints comprise two bone ends covered by articular cartilage (provides cushioning to the joint) encased within a joint capsule (or sac). The inner layer of the sac, which is called the synovial lining, secretes synovial fluid that provides lubrication and prevents friction between the bones.

The articular cartilage is made up of collagen, proteoglycans and water. Proteoglycans consist of chains of glycosaminoglycans, which are a type of carbohydrate attached to a protein to provide strength to the cartilage. Chondroitin sulphate is a glycosaminoglycan and is a key component of proteoglycans. Synovial fluid contains hyaluronic acid (also a glycosaminoglycan) and a protein called lubricin.  Read more about Joint Health>>>

Our small scoop size and palatable unique formula, means even fussy feeders can benefit from the maximum level of support provided by Performance Flex Plus TM.

*At time of publication

Additional information

Weight N/A

Feeding Guide – Horses in hard work or with challenged joints*

Weight of horse:

  • Pony, approx. 250kgs: 1 scoop (40 grams per day)
  • Horse, approx. 500kgs: 2 scoops (80 grams per day)
  • Large horse, approx. 750kgs: 4 scoops (160g per day)

A 2.4kg bag will last approximately 30 days for a 500kg horse.

Feeding Guide – General maintenance or those in lighter work*

One level scoop is 40g (50ml)

Weight of horse:

  • Pony, approx. 250kgs: 1/2 scoop (20 grams per day)
  • Horse, approx. 500kgs: 1 scoop (40 grams per day)
  • Large horse, approx. 750kgs: 2 scoops (80g per day)

A 1.2kg bag will last approximately 30 days for a 500kg horse.

*Loading dose – for first time use, double the daily recommendation for 7 days and split between feeds. For a 500kg horse feed 1 scoop in the morning and 1 scoop in the evening.


CompositionGlucosamine HCI 99.9% pure, Methyl Sulphonyl Methane (MSM), Omega 3 (flax seed), Chondroitin Sulphate 90% (low molecular weight), Hyaluronic Acid (HA)

AdditivesBoswellia Serrata 65%, Vitamin C (Ascorbic), L-Arginine (3c361),

Nutritional analysis:

  • Total Oil – 5.75%
  • Crude Protein – 21.20%
  • Crude Fibre – 0.80%
  • Crude Ash – 3.50%
  • Sodium – 0.90%
  • Starch – 5.70%

Active Ingredients Comparison Table

Based on a 500kg horse feeding rate

Active Ingredients Maintenance rate (40g) Competition/Hard work rate (80g)
Glucosamine 11.25g 22.5g
Chondroitin 5.3g 10.6g
MSM 11.25g 22.5g
Omega 3 4g 8g
Boswellia 5.3g 10.6g
Vitamin C 4g 8g
Hyaluronic Acid 600mg 1.2g
  • 30 servings – gives approximately 1 months’ supply for a 500kg horse in general/normal work.
  • 60 servings – gives approximately 2 months’ supply for a 500kg horse in general/normal work.
  • 90 servings – gives approximately 3 months’ supply for a 500kg horse in general/normal work.

Required minimum daily intake of ingredients according to maintenance rates for active ingredients for a 500kg horse

Active Ingredient All horses (Young and Older)/Low
level competition
Optimal levels for competition/joint
support/older horses
Glucosamine HCL 10g 17g
Chondroitin Sulphate 4g 6g
MSM 10g 17g
Hyaluronic Acid 0.5g 1g
Boswellia 12g
Omega 3 Fatty Acids 7g

Customer Reviews

  1. Wow one of my favourite premier performance products! We use performance flex for a long time with amazing results, then along came this new product performance flex plus and wow just when you think a product can’t get any better, this one has! The difference in the horse was very noticeable within a few days of switching over and is just incredible. There is no other product on the market like this and it really is the best joint supplement ever to have been made❤️our horse feels the best he ever has done and is moving so well and is so happy. Thank you to Camilla for her chats and advice and guidance, you and your products are the best 👏

    Lisa Harding

  2. We’ve been using the performance flex for quite some time but transitioned to the PLUS. a few months ago after the vet research that went into it.

    Our horses have never looked or felt better. We’ve had horses come to us who have previously had injections in their joints, since using the Performance Flex Plus, they’ve not needed anything apart from this.

    We can’t recommend this product enough and we certainly wouldn’t be where we are without it

    Melanie Austin

  3. I have been using performance flex plus for a months now, I was lucky enough to be able to trial the product on a couple of my showjumpers.

    So impressed with it. Before we used the performance flex anyway but with the research and vet Input that’s been put into this new product it’s one of the best on the market supporting joint health, mobility and elasticity.


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