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Conflicts of Interest The authors declare that there are no conflict of interest

There are a few popular forms of acetyl glutathione, one of which is N-Acetyl-Cysteine (NAC) an orally available precursor to cysteine.The premise here is that the body needs cysteine for GSH synthesis

Seeing his low blood levels, his doctor might prescribe an oral B12 supplement

10.1126/science.287.5451.303 153 YinH.ChenQ