ghk-cu levels decline with age The potential of GHK as an anti-aging peptide GHK-Cu Copper Peptide Regeneration Review
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10.1371/journal.pone.0113939 94 NagahisaT.YamaguchiS.KosugiS.HommaK.MiyashitaK.IrieJ.et al (2022)
[DOI] [PubMed] [Google Scholar] 59.Nunomura A., Tamaoki T., Motohashi N., Nakamura M., McKeel D.W., Jr., Tabaton M., Lee H.G., Smith M.A., Perry G., Zhu X
GHK-Cu cream applied twice daily improves aged skin appearance, increases thickness, reduces wrinkles and strongly stimulates dermal keratinocyte proliferation
