The mechanism of action of N acetylcysteine (NAC): The emerging role of H2S and sulfane sulfur species ScienceDirect As I mention in my book, N acetyl cysteine (NAC) is not found in food sources, but in the body, it converts into cysteine. NAC acts as a precursor to glutathione, a powerful Unlock the power of NAC! This amino acid helps your body produce glutathione, a potent antioxidant that supports detox, fights oxidative stress and boosts your immune system. N acetylcysteine (NAC) as a Glutathione vs. NAC: Why You Should Take NAC for Better Absorption Creme Carrotte Glutathione Extra Fort MamaTega Buy Youth & Earth Liposomal Glutathione Max Strength 300mg (60 Capsules) Made in UK Buy Now with Express International Delivery GoSupps.com