Glutathione and NAC Reduce the Severity of COVID 19 L Glutathione vs. oxidized vs. Reduced Glutathione Glutathione for Food and Health Applications with Emphasis on Extraction, Identification, and Quantification Methods: A Review Glutathione oral supplements capsules work well when paired with Glutathione injections and alone if preferred. You can take them with your other daily supplements for excellent skin & health results. Glutathione supports Benefits of Glutathione." Glutathione is a compound involved as a coenzyme in oxidationreduction reactions in cells. It is a tripeptide derived from 3 amino acids: Cysteine, glutamate (from glutamic acid), and glycine.