L-glutathione L-glutathione reduced Application (1) glutathione is an antioxidant present at high concentrations in almost all cells of the body. (2) a decrease of glutathione levels decrease with aging in humans. (3) glutathione administration promotes healthy liver function. (4) glutathione promotes immune function. Chemicals name+-l-glutamyl-l-cysteinylglycine Cas no.70-18-8 Molecular formulac10h17n3o6s Molecular weight307.33