Re: Ques. on L Cysteine and N acetyl cysteine

NAC is less prone to auto-oxidation than cysteine and more intracellularly active.

This is why Hulda Clark only recommends L-Cysteine for 6 weeks or so, while NAC can be taken for longer. To mop up heavy metals and stuff L-Cysteine is cheaper but for long term usage, specifically to protect glutathione in cells, R+Lipoic is better but much more expensive.

more:
http://aor.ca/int/related_research/nac.php
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