The effectiveness of compound X is oftentimes dependent on the presence of compounds Y and Z and so on. Endogenous compounds like glutathione get a lot of commercial attention but they do Frontiers Redox homeostasis via gene families of ascorbate glutathione pathway Glutathione reductase catalytic cycle MedLink Neurology TJ. Glutathione peroxidase is an important enzyme in cellular antioxidant defense systems, detoxifying peroxides and hydroperoxides. As a component of the glutathione cycle, it protects the liver from reactive oxygen metabolites. Selenocysteine Glutathione Metabolism an overview ScienceDirect Topics Glutathione in liver diseases and hepatotoxicity. Semantic Scholar