If your glutathione levels are where they should be your body works differently. You detox more efficiently. You recover faster. Your immune system responds better. Your energy is more stable. Your skin 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, GSH Glo Glutathione Assay Your Glutathione Index Defines How Your Cells Are Ageing