ProThera`s N-Acetyl-L-Cysteine 90 caps

Glutathione precursor; 500 mg.

This derivative of the amino acid cysteine is often used as the preferred substrate for intracellular glutathione synthesis. It also assists liver detoxification mechanisms, provides cellular antioxidant protection, and is much safer than cysteine. 

Suggested Use: 1 to 2 capsules daily with food.