Glutathioneoften called the bodys master antioxidantsupports detoxification, cellular repair, and longevity. It neutralizes oxidative stress, recycles other antioxidants, and promotes mitochondrial Glutathione and NAD are often placed in the same category. They are not the same. One drives cellular activity. The other protects it. NAD is deeply involved in energy production, mitochondrial function, Glutathione Peroxidase 1 Regulates Mitochondrial Function to Modulate Redox dependent Cellular Responses* Autoregulatory control of mitochondrial glutathione homeostasis Science