What is glutathione and why must we protect patient access to it? Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Glutathione is often called the master antioxidant and for good reason. This powerful molecule protects your cells from oxidative stress, supports detoxification, and strengthens the immune system. But as we age, Liposomal Glutathione Terra Health Essentials Oral delivery of glutathione: antioxidant function, barriers and strategies ScienceOpen