glutathione sulfhydryl oxidase Glutathione-Related Enzymes and Proteins: A Review Figure 1 from Glutathione redox

Lv Y, Sun B, Lu X-X, Liu Y-l, Li M, Xu L-X, Feng C-X, Ding X et al (2020) The role of microglia mediated pyroptosis in neonatal hypoxic-ischemic brain damage

[60] examined 61 unmedicated schizophrenia patients before and after 6 weeks of treatment with risperidone [60]

Fang FQ, Sun JH, Wu QL, Feng LY, Fan YX, Ye JX, Gao W, He GL, Wang WJ

We mention this not to claim GHK-Cu is "better" than retinol - it isn't a fair comparison given the difference in research depth - but because it suggests the ingredient is doing something real at the structural level when formulated and applied thoughtfully

( Dilated cardiomyopathy and neonatal lethality in mutant mice lacking manganese superoxide dismutase