Figure 3 from Glutathione synthesis. Semantic Scholar Simulation Modeling of Glutamate Cysteine Ligase Activity Biophysics Springer Nature Link Everyone says NAC can make glutathione. Wrong. Evidence against this is staring right at you. As you can see here, my wife's GCLC gene is genetically slower. Thus, she cannot convert Cysteine Glutathione: your body's master antioxidant & detoxifier Glutathione is the 2nd most abundant molecule in the body, just after water. Its made from three amino acids: glycine, cysteine, & glutamate. Glutathione is often called the body's master antioxidant for a reason. Research shows it plays a major role in detoxification, oxidative stress control, liver support, and neutralizing toxic alcohol byproducts like