glutathione in skin whitening For Whiter Skin, Some Are Turning to Injections Glutathione for skin lightening -

J Assist Reprod Genet 30:131141

The peptide enhances dendritic spine formation, increases synaptic density, and facilitates long-term potentiation while reducing neuroinflammation through decreased IL-1 and TNF- expression and increased anti-inflammatory IL-10 levels

Thus, structures of glutathionylated glutaredoxins 31,43,44,45 most likely resemble enzyme species F, whereas similar structures of complexes between reduced glutaredoxin and GSH with longer sulfursulfur distances 24,46 do not represent the interaction with GSH (but probably also resemble species F)

It's been studied since the 1960s, originally found in the thymus gland (hence thymosin)