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
It also contains 1 percent colloidal oatmeal, which helps to further soothe skin
It is still not FDA-approved and still carries uncertainty, but it exists within a medical and pharmacy framework
Am Fam Physician
Some people also report an unpleasant sulphurous taste or odour, which is characteristic of the compound's chemical structure
Suckfull M, Althaus M, Ellers-Lenz B, et al