NAC + Glycine Powder, 5.6 oz, Pure Encapsulations NAC (N acetylcysteine) is used in hospitals to support patients with acetaminophen overdose by helping the liver rebuild glutathione, the body's master antioxidant. Research has linked daily NAC to healthier liver markers and GlyNAC ET (N Acetyl Cysteine Ethyl Ester) Glycine has many cardioprotective effects: increased antioxidant defense through glutathione reduction in inflammation and oxidative stress lowering of blood pressure lowering of blood sugar lowering of homocysteine Figure 3 from GLUTATHIONE SYNTHESIS Semantic Scholar Glutathione: The Master Antioxidant Core Med Science