NAF SUPERFLEX LIQUID 1 LITRE. Superflex is the right combination; a scientifically balanced ratio of readily absorbed Glucosamine and Chondroitin, highest quality MSM plus the added benefits of a powerful antioxidant formula, exclusively designed by NAF to address excess toxin build up around the joint. Ingredients: Water, Glucosamine HCl, MSM, l-Glutamine, Vitamin C, Chondroitin sulphate, Xanthan gum, Potassium sorbate, Colour (caramel), Hyaluronic acid. When to feed: Feed daily for working joints, particularly in competition horses or where compromised joint function is seen.