However, for chronic oxidative stress management, a well-functioning GR system provides sustained protection by maintaining glutathione pools over time
Cells, 10 (7), Article 1794
Rat'ko AA et al
And the prometastatic effect was inhibited by fludarabine (Xing et al., 2018)
33 Consistent with this concept, in vivo zebrafish injury models have demonstrated that lipid peroxidation can act as a spatial redox relay over hundreds of micrometers, providing a biologically relevant framework for how oxidative signals may propagate across multicellular tissues
Until studies of that design exist and agree, statements about GHK-Cu and hair growth remain at the level of mechanistically plausible and worth testing, which is precisely how a careful reader should hold them