Is Glutathione safe? If it's safe which is the best one to buy? : r IndianSkincareAddicts The ingredient nobody's talking about but should be. Glutathione is your body's ultimate defender against oxidative stress, and most people have never heard of it. Ours has no artificial colors, What is glutathione and why must we protect patient access to it? 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, What is glutathione and why must we protect patient access to it?