Glutathione is a substance made from the amino acids glycine, cysteine, and glutamic acid. It is produced by the liver and involved in many body processes. Glutathione is involved in tissue building Glutathione is the body's primary internal antioxidant, made using the amino acid cysteine, and it helps protect cells from oxidative stress. Beyond detoxification, research shows glutathione is involved in thyroid hormone metabolism, Bluebonnet L Glutathione 100 Mg 60 Vegetable Capsules, free form Amino Acid Newly revealed amino acid function could be used to boost antioxidant levels EurekAlert! Glutathione: your body's master antioxidant & detoxifier Glutathione is the 2nd most abundant molecule in the body, just after water. Its made from three amino acids: glycine, cysteine, & glutamate.