David Increasing glutathione levels is something I have been advocating for well over two decades. Here are some strategies for doing so: Consume sulfur rich foods like cruciferous vegetables Ensure FDA Advisory No. 2019 182*** UNSAFE USE OF GLUTATHIONE AS SKIN LIGHTENING AGENT The Food and Drug Administration (FDA) warns the public on the dangers associated with the use of injectable lightening agents Injectable Glutathione Side Effects Baltimore: Safety Guide Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Health Benefits of Glutathione HubPages