A scientific review of four small-scale studies confirmed that glutathione use does result in some skin lightening.24 Additionally, glutathione has also been shown to decrease psoriasis when levels are bolstered by intake of whey protein, which contains glutamylcysteine, a precursor to GSH.25 Most impressively, perhaps the same studies mentioned above also show that glutathione doesn't just lighten, but it improves skin elasticity and decreases wrinkles' appearance
Glutathione is synthesized from glycine, cysteine, and glutamate in a two-step process that occurs in the cytosol of all cells
All cell types, including lymphocytes and other immune cells, have a complex machinery of antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, thioredoxin etc.) and antioxidant molecule (reduced glutathione, vitamins) for regulating oxidant reactions in the cells prevent free radical mediated cytotoxicity [54]
Notes to editors: Glutathione Glutathione is an antioxidant produced naturally in the liver
