Glutathione vs Astaxanthin: Which Is Better? Performance Lab Glutathione Beauty is more than just skin deep Antioxidants and Sports Performance Glutathione is such an important antioxidant in human physiology, meaning it acts to combat oxidative stress. Strategies for increasing glutathione include: Consume sulfur rich foods like cruciferous vegetables Ensure you get Amazon.com: Immunocal Sport Bundle Sport and Booster Energy Performance Glutathione Precursor with Whey Protein Isolate & Nrf2 Activator : Health & Household Results RNA ACG Glutathione Extra Strength 4 Ultimate Source Of Antioxidant Minimize Stress, Optimizing Health and Athletic Performance 4 Ounce: