An essential amino acid for strengthening & protecting the body Pure, finest top quality, excipient-free glycine. Glycine plays a role in many of the body’s physiological processes. It is a key component of collagen which ensures the health of tissues & organs. It is essential for the formation of haemoglobin. It also helps the nervous system, immune system, metabolism & muscles to function properly.. . It is a precursor of creatine, porphyrins, glutathione (the most powerful antioxidant), etc.