N-Acetyl-L-Cysteine (NAC) is an antioxidant and along with the amino acid L-Glycine, they are precursors to glutathione (GSH), an intracellular antioxidant. Antioxidants help protect cells against free radical damage and oxidative stress. 

The mineral selenium is also an antioxidant and a factor in the maintenance of good health. Selenium plays a key role in supporting normal thyroid function. 

CanPrev’s NAC+ combines 600mg of NAC with 70mg of L-Glycine and 20mcg of Selenium for antioxidant support.