Its Enhanced antioxidant formula containing amino acids, nucleic acid, and lipoic acid that acts as a powerful antioxidant and supports glutathione production. Developed by Martin Pall, Ph.D. and NutriCology. NAC Enhanced is part of an antioxidant supplementation protocol. Suggested use: As a dietary supplement, 1 tablet three times daily, or as directed by a healthcare practitioner.Other ingredients: Dicalcium phosphate, microcrystalline cellulose, magnesium stearate, silicon dioxide, stearic acid, croscarmellose sodium, ethyl vanillin.;Variations in product color may occur. Keep in a cool, dry place, tightly capped.