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The trajectory suggests exciting possibilities, but also key research gaps

While extensively studied in preclinical and small clinical settings, GHK-Cu lacks FDA approval as a pharmaceutical agent and is primarily available in cosmetic formulations for topical use

Adv Gerontol 2022;12:1438

The potential role of this peptide in wound healing and tissue regeneration was demonstrated in a study which showed that because of the increased level of GHK-Cu in the plasma of younger adults compared to older adults, livers from older patients transplanted into younger patients began to function in the same way as younger liver tissue