Glucosamine Hci Is The Most Versatile And Bio-Available Amino Sugar That The Body Converts Into Essential Biomolecules. Glucosamine Is Often Called Cellular Glue. It Is The Main Building Block For Semi-Fluids That Lubricate Joints And Fill Their Cushioning Sacks (Bursa). It Also Forms The Core Of Skeletal Bone And Of Cell Recognition Molecules. Recognition Molecules Are Used By The Body's Defense System To Distinguish Its Own Cells From Other Substances. Effective For Joint Function And Health. Your Body Uses Glucosamine, A Natural Compound, To Create One Of The Main Building Blocks Of Joint Cartilage, Proteoglycans.