N-Acetyl Cysteine (NAC) is a stable form of the non-essential amino acid L-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.

If symptoms persist consult your healthcare practitioner. Avoid using in pregnancy and lactation, due to insufficient reliable information available. Always read label. Use only as directed.