glutathione cystine import is the rate-limiting step in biosynthesis The biosynthesis of glutathione. Glu:
Description
A note on whole body wellness

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Notably, geldanamycin, an Hsp90 inhibitor, blocked NOS1 mitochondrial translocation, reversing its anti-apoptotic effects and restoring chemosensitivity

doi: 10.1523/ENEURO.0088-24.2024 156

You can find more scientific research on B12's role from sources like the National Institutes of Health

Contaminated or under-dosed peptides can skew your results or, worse, introduce unwanted variables
