That said, a recent literature and patent review confirms it still lacks the comprehensive human clinical studies needed for regulatory approval, meaning its research-use status is unlikely to change soon (Jozwiak 2025)
Nature Medicine , 19(5), 576-585
In research environments, copper peptide GHK-Cu is extensively studied for its role in cellular communication, tissue repair, and regenerative signalling pathways
It is not a passive fat burner and produces little without the exercise that actually moves fatty acids into the mitochondria for oxidation
Over subsequent decades, GHK-Cu became the subject of extensive research involving wound healing, skin health, hair follicle biology, and tissue remodeling pathways