glutathione comes from What is glutathione? Glutathione | Spec chem industry
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doi: 104
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The administration of cysteine-rich glutathione precursors, especially N-acetyl cysteine, has been shown to increase intracellular glutathione levels
[DOI] [PubMed] [Google Scholar] 140.Ammar A., Turki M., Hammouda O., Chtourou H., Trabelsi K., Bouaziz M., Abdelkarim O., Hoekelmann A., Ayadi F., Souissi N., et al