Glycine Powder contains 3 grams of glycine per serving, a free-form amino acid that supports protein synthesis, musculoskeletal health, antioxidant status, detoxification, sleep, and memory.* Glycine is necessary for the structural building blocks of connective tissues, which make up the heart, bones, tendons, skin, lungs, muscles, and more.* Therefore, it may help support normal tissue repair and regeneration.