NAC (n-acetyl l-cysteine) is a Semi-essential amino acid. Your body can produce it, but only if it has enough serine and methionine. * NAC supplements help people all over make up for low levels of Glutathione.* NAC is the supplement version of cysteine....
The presence of conserved Cys in protein motifs found in all organisms could indicate that this feature was harnessed in early evolution to support enzyme catalysis, transcriptional regulation, protein folding, and 3-dimensional structure [4,5]. Cys is synthesized from methionine (an essential amino...