N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid 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. Molybdenum and selenium are essential trace minerals that facilitate
the production of several important enzymes. Take 1 capsule twice daily. Black speckling may
occur over time after package is opened, but product is safe to consume. NAC is a sulfur-
containing amino acid so an unpleasant smell is possible. Leave dessicant and charcoal
packets in bottle after opening to delay oxidation and control odor (if any).