NAC (sometimes called n-acetylcysteine) is a potent
antioxidant in the body as it neutralizes harmful free
radicals that damage cells. It also increases the body’s
glutathione levels, which is possibly the most powerful
antioxidant in the body.

NAC is used to support liver and kidney detoxification
and to support immunity.

Please read the helpful article on NAC at 
Foreveryoungradio.com