NAC Antioxidant & Detox Support Allergy Research Group The mechanism of action of N acetylcysteine (NAC): The emerging role of H2S and sulfane sulfur species ScienceDirect L Glutathione VS NAC: Differences, Similarities, and Uses Glutathione is the body's master antioxidant. It is important for handling oxidative stress, detoxification, and immune health. Low glutathione is linked to many chronic illnesses. Knowing what your body needs to make NAC vs Glutathione: Differences, Similarities And Health Benefits