Glucosamine is a naturally occurring sugar-related nutrient, which is important in normal joint function. Glucosamine is produced within the body; however as people age the capacity to manufacture sufficient levels of glucosamine is reduced. Glucosamine is not present in significant amounts in most diets. Supplemental sources are derived from the shells of shrimp, lobster, & crab. Collagen is a natural skeletal protein accounting for nearly 80% of the bodys skin, muscles & connective tissue. Glucosamine sulphate may help to support healthy joint & Collagen naturally contains Glucosamine & Chondroitin again which may also support healthy joints. Collagen also contains many amino acids such as Lysine, Serine, Proline, Tyrosine, Arginine, Aspartic Acid, Lysine is not something which is produced by the body this is obtained by foods & supplements & plays a key role on the production of Carnitine which is responsible for converting fatty acids into energy & helps to lower your cholesterol. Tyrosine is a nonessential amino acid the body makes from Phenylanine which is a building block for brain chemicals, Tyrosine also helps to produce Melanin responsible for hair & skin pigment.