Built beyond glutathione Our newest formula combines liposomal glutathione with Vitamin C, Riboflavin, Selenium, and Resveratrol to support antioxidant activity at multiple levels.* Swipe through to see what's inside and how Apoptosis, Free Radicals and Antioxidant Defense in Antitumor Therapy IntechOpen Enzymatic and Non enzymatic defense against ROS Glutathione peroxidase 4: a new player in neurodegeneration? Molecular Psychiatry 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 Fluid Shear Stress Attenuates Hydrogen PeroxideInduced c Jun NH2 Terminal Kinase Activation via a Glutathione ReductaseMediated Mechanism Circulation Research