NAC is a stable form of amino acid, L-Cysteine which is in high-protein foods

NAC N-Acetyl-Cysteine 600mg – 150 Vegan Capsules – 5 Months Supply of NAC Supplement – High Bioavailability – No Synthetic Fillers & Binders – Made in The UK by Nutravita Take 1 Capsule daily with a full glass of water.