The Glucosamine HCL in Joints Formula is the main building block for semi-fluids that lubricate joints. HCl is an easily assimilated form of Glucosamine. Masquliers Tru-OPC"s, protect and strengthen collagen for healthy connective tissues. Trace minerals are essential for healthy bone matrix, and Boswellia extract, is a highly researched Ayurvedic herb. Joints Formula with Glucosamine represents the powerful synergy of current scientific research and traditional herbal medicine.