Product Overview
Douglas Labs N-Acetyl-L-Cysteine 500 mg 90 capsules
N-acetyl-L-cysteine vegetarian capsules contain 500 mg pure N-acetyl-L-cysteine (NAC). NAC is a biologically active precursor for the amino acid cysteine which, in turn, is a precursor for glutathione, a tripeptide with antioxidant properties.