N-Acetyl-L-Cysteine 500 mg.

N-Acetyl-L-Cysteine vegetarian capsules contain 500 mg pure N-Acetyl-L-Cysteine. N-Acetyl-L-Cysteine is a biologically active precursor for the amino acid cysteine which, in turn, is a precursor for glutathione, a tripeptide with antioxidant properties.‡