NOW Foods, NAC, 600 mg, 250 Capsules

Free Radical Protection Maintains Cellular Health With Selenium Non-GMO A Dietary Supplement Kosher Amino Acids Family Owned Since 1968 Halal GMP Quality Assured N-Acetyl Cysteine (NAC) is a stable form of the non-essential amino acid cysteine. It is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and is also necessary for the formation of glutathione. Selenium is an essential trace minerals that facilitate the production of several important enzymes.