Posted 30 days ago
getvitalnl
@getvitalnl · 30 days ago
I’ve been looking into the research surrounding GHK-Cu and noticed a fairly large gap between how confidently it is discussed online and the amount of human clinical evidence actually available.
Much of the literature appears to focus on mechanisms and preclinical findings, including extracellular matrix remodeling, collagen-related pathways, wound healing and tissue repair.
Human evidence seems considerably more limited.
One point I find particularly interesting is that discussions about GHK-Cu often combine several different evidence categories:
in-vitro research
animal studies
topical/cosmetic studies
human clinical research
These obviously shouldn’t all carry the same evidentiary weight.
For example, a recent systematic review examining GHK-Cu in skin-related research identified 20 studies, but 18 were preclinical and only two were randomized controlled trials. That seems like an important distinction when interpreting claims around GHK-Cu.
I’m curious how others here evaluate the current evidence.
Which effects of GHK-Cu would you consider reasonably supported by human data, and which are still primarily based on mechanistic or preclinical evidence?
I’d especially be interested in good human studies that I may have missed.
References
Systematic review of GHK-Cu in skin-related research, 2026 — PMID: 42619529
Topical GHK-Cu review — PMID: 39963574