Absorption, Safety, and Detoxification Effects of Oral Liposomal Glutathione Townsend Letter 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, Interactions between Glutathione (GSH), Vitamin C (ascorbate), Stock Illustration Illustration of species, labeled: 422536697 Glutathione Index Test GSH & GSSG At Home Kit Australia Bloody Good