Glycine is a nonessential amino acid that the body produces on its own. Glycine can be found in the skin, muscles, and collagen and has a somewhat sweet flavor. Glycine powder is most commonly taken as a supplement alongside creatine to help support the muscles. Glycine may promote healthy sleep and contribute to healthy mood and an overall sense of well-being.* Glycine may also have natural antioxidant properties and support the liver, joints, and skin.** These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.