Another study in adult rats showed that peripheral infusion of IGF-1 increased progenitor cell proliferation and selectively induced hippocampal neurogenesis [27]
Jarosz et al., 2017)
HUBERMAN: So the point is that if you want a specific biological effect, maybe you want to repair a given injury, or you'd like to get more growth hormone in order, I don't know, to get leaner or to recover from exercise more quickly or to feel more vitality, yes, there are peptides that can impact those pathways, but always, always, always, if you take peptides, especially therapeutic peptides, designed to promote activity within a given pathway for a specific purpose, you are going to activate other pathways as well
What will help you get the lost radiance and glow back
GHK-Cu is not approved by the FDA or any regulatory agency for therapeutic or cosmetic use
Hanguk Nonghwa Hakhoe Chi 34: 318-326