GLUCOS-A-FLEX contains a blend of glucosamine hydrochloride, vitamins, minerals, amino acids and antioxidants. GLUCOS-A-FLEX contains Zinpro Performance Minerals® organic copper, which has been shown to assist with the formation of connective tissue, bones and joint cartilage. Organic zinc supports cell division and protein synthesis for skeletal growth and repair. Affordable, powdered supplement for all working, performance and aged horses. When used long-term, glucosamine has shown to be beneficial for joint health and function. The nutrients contained in the formula work synergistically and are essential for bone metabolism and the maintenance of cartilage and elastic connective tissue.