N-Acetyl L-Cysteine - NAC Amino Acid Powder Supplement

Cysteine is a semi-essential amino acid. Cysteine is found in most high-protein foods, such as chicken, turkey, yogurt, cheese, eggs, sunflower seeds and legumes. N-acetyl L-Cysteine (NAC) is a supplement form of cysteine. NAC is an immediate precursor to a very precious substance that our body makes called glutathione.