NAF Five Star Superflex Liquid. Help maintain and keep your horses and ponies joints healthy with NAF Five Star Superflex Liquid. With a scientifically balanced ratio of readily absorbed Glucosamine, Chondroitin and high quality MSM plus with the added benefits of a powerful anti-oxidant formula allows Superflex Liquid to address excess free radical build up around the joints. With all the main nutrients included that are known to help support the health of cartilage and synovial fluid, Superflex has designed the perfect balance with over 25 years of working with sound horses.