Glucosamine is an amino sugar that is produced naturally in humans. It is also found in seashells, or it can be made in the laboratory. Glucosamine hydrochloride is one of several forms of glucosamine.It is naturally contained in any healthy cartilage. Glucosamine encourages the cartilage to create the fundamental building material of the cartilage, proteoglycans and collagen. Proteoglycans with their …