Indeed, serum GGT activity is a routine clinical measurement and is a risk factor for cancer 60
Glutathione levels in breast milk are generally low, and supplementation is unlikely to cause significant changes
The two compounds target entirely different systems and do not compete with one another
Laboratory studies suggest that GHK-Cu can influence several biologically relevant processes including fibroblast activity, collagen, elastin and glycosaminoglycan synthesis, matrix metalloproteinases and their inhibitors, keratinocyte migration, angiogenesis, antioxidant defence, inflammatory signalling and extracellular-matrix remodelling
NM acts as a metal chelator, binding Fe + and Fe + to suppress Fenton-driven hydroxyl radical formation and dopamine oxidation