Glutathione is often misunderstood as a skin whitening solution but the science tells a very different story. It is primarily an antioxidant that works against oxidative stress and free radical damage inside Glutathione Treatments 101: Part 1 The Mother of All Antioxidants BioDesign Wellness Center Rapid and effective protocol to measure glutathione peroxidase activity Bulletin of the National Research Centre Springer Nature Link 5 Common Mistakes to Avoid While Using Glutathione in Skincare