Selenium is one of the few nutrients that directly controls how your body handles oxygen at the cellular level. Every time your cells produce energy, they generate peroxides as a byproduct. That Selenoglutathione Diselenide: Unique Redox Reactions in the GPx Like Catalytic Cycle and Repairing of Disulfide Bonds in Scrambled Protein Biochemistry Liposomal Glutathione, Alpha Lipoic Acid & Selenium Meteron Labs Daimon Barber FORMA NUTRITION Advanced L Glutathione + Selenium 90 Veggie Capsules