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Fujii T, Mashimo M, Moriwaki Y, Misawa H, Ono S, Horiguchi K, et al
N-acetylcysteine (NAC) is widely regarded and used as a prodrug to increase intracellular cysteine pools and is used to treat glutathione deficiency diseases 47
In the clinical study, the glutathione amino acid precursor treatment restored GSH/glutathione disulfide levels after UV treatment, confirming its in vivo GSH-boosting effects
Glutathione is an antioxidant produced in the cells of our body
However, as we age or face environmental stressors, our natural levels of glutathione can decrease, leading many to consider supplementation