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Vitamin C Boosts Glutathione Absorption and Regeneration Glutathione exists in two forms in the body reduced (active) and oxidized (inactive)

Am J Hypertens 28(1):1521 Bos JM, Hebl VB, Oberg AL, Sun Z, Herman DS, Teekakirikul P, Seidman JG, Seidman CE, Dos Remedios CG, Maleszewski JJ (2020) Marked upregulation of ACE2 in hearts of patients with obstructive hypertrophic cardiomyopathy: implications for SARS-CoV-2-mediated COVID-19

There, within the cell, enzymes convert S-acetylglutathione back into reduced glutathione, which can then function optimally and at the crucial site

doi: 10.1080/15622975.2021.2013041