glutathione synthesis definition and recycling. Glutathione is a recyclable Glutathione-Mediated Conjugation of Anticancer Drugs:
Description
Cell Stem Cell 23 , 727741 (2018)

The metabolic and functional demands of human cells can differ markedly from those of animal cells: for example, human plasma-like media (HPLM) that comprises 60 metabolites (e.g., amino acids, lipids) at physiologically relevant concentrations, demonstrated improved support for human cell culture (Ackermann and Tardito, 2019

This varies a lot
PMID: 129 ShahMARogoffHA
