For Those In High Work Loads


Key Features

  • Provides a unique blend of collagen, amino acids,  hyaluronic acid and key trace elements (copper, manganese and silicon) delivering the important nutritional building blocks to help the horse make his own glycosaminoglycans and proteoglycans (natural compounds produced by the horse including glucosamine and chondroitin) to support cartilage and joint fluid health.
  • Also provides MSM and Boswellia, both well known for their roles in helping to provide nutritional support for joint health and comfort
  • Tried, tested and trusted all over the world, with over 2 million units sold worldwide!


New improved Cortaflex® HA Super Fenn Powder formulation is now even better. We have enhanced levels of key compounds and nutrients associated with supporting joint health and comfort, including increased levels of the key minerals copper and silicon. You may notice tiny blue particles distributed through the product – this is the important trace mineral copper, vital for bone and muscle health, and supplied through bioavailable chelated copper. The tiny brown particles are the silicon, supplied as monosilicic acid, which plays a key role in cartilage and bone health.  The new formulation also includes an attractive apple aroma!

Want to know a little bit more detail?

Cortaflex® HA Super Fenn Powder has been especially formulated to provide optimum joint support for performance, racing and competition horses, or older horses with significant levels of wear and tear.

Cortaflex® HA Super Fenn Powder provides the building blocks to help the specialized cells in cartilage, called chondrocytes, to maintain the repair process. (Cartilage is the spongy, elastic material which covers the ends of bones within a joint, and together with joint fluid which bathes the joint, acts as a vital shock absorber.)

This unique blend of ingredients include;

  • Collagen – an important compound needed to produce the water based matrix of the cartilage, to help give it strength and elasticity. (We use a sustainable and ethical source of marine collagen.)
  • Hyaluronic acid – a key component of the vital joint fluid, which lubricates the joint, and also acts as a shock absorber.
  • Amino acids to provide the building blocks for the production of the amino sugars such as glucosamine, which are an important part of the cartilage repair process.
  • Key trace minerals manganese, silicon and copper, which all play important roles in the production of structural compounds such as chondroitin, as well as in the production of collagen and hyaluronic acid.
  • Also included MSM, providing a bio-available source of sulphur to support the sulphur-containing bonds in the cartilage matrix.
  • Plant extracts from Boswellia provide antioxidants and other important phytochemicals to support joint health and comfort.


Available in 500g, 1kg and 4.5kg yard size.

Also availble in liquid form.



Buteless Super Strength Powder – high potency nutritional support for joint comfort, providing high levels of Boswellia, MSM, Turmeric and Omega 3 fatty acids.

Turmeric – high quality curcumin with black pepper and Linseed (flax) oil already added.

Pure MSM – high quality pure Methyl Sulphonyl Methane.

Formula 1 – the ultimate all-in-one performance supplement, delivering nutritional support for joints (contains the Cortaflex ingredients) , the digestive system, muscle development and the immune system, including Boswellia, Spirulina, MSM, pectins, lecithin and echinacea, as well as a broad spectrum mineral and vitamin supplement including high levels of Vitamin E and other antioxidants. Supplied in an easy to feed, palatable pellet.

Glucosamine 12000 – with added MSM and Hyaluronic acid – for those who prefer a glucosamine based supplement to provide high quality, cost-effective joint support.