How Its Being Used Youll find GHK-Cu in: Topical serums (often post-laser or with microneedling) Compounded injectables and transdermal creams (off-label) PRP and hair regrowth protocols Common use cases: Post-surgical healing Cosmetic skin rejuvenation Hair regrowth (stacked with PRP or exosomes) Scar treatment Wound support The Evidence: Topical use has shown skin improvements in small cosmetic trials Gene expression and lab studies support repair, inflammation reduction, and mitochondrial protection relevant to cognitive decline Systemic use (injections, high-dose protocols) lacks long-term safety and outcome data Results are highly individual and confounded by other interventions (PRP, microneedling, exosomes, etc.) Is It Safe
However, cautious use of this stack is advised, as individual responses and potential side effects can vary
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This was also observed in this study in the magnesium treated group with values obtained being comparable to those of the insulin treated animals (Figure 1)
Novo Nordisk filed for FDA approval of CagriSema in early 2026, with a review decision expected later this year