Technically, N-L-gamma-glutamyl-cysteinyl glycine or L-glutathione, the molecule has a sulfhydryl (SH) group on the cysteinyl portion, which accounts for its strong electron-donating character
Crdenas A, Rifas-Shiman SL, Agha G, Hivert M, Litonjua AA, DeMeo DL, Lin X, Amarasiriwardena C, Oken E, Gillman MW, Baccarelli A (2017) Persistent DNA methylation changes associated with prenatal mercury exposure and cognitive performance during childhood
The Indian J Med Res 62(6):831837 Boopathi NM, & Abubakar BY (2021) Botanical Descriptions of Moringa spp
However, the reduced IGFBP binding comes with a significant pharmacokinetic trade-off: IGF-1 DES has an extremely short plasma half-life of only 20-30 minutes compared to the 12-15 hour half-life of endogenous IGF-1 in its IGFBP-bound state
Haque, S