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BUYING & USAGE GUIDE Buy AHK-Cu from a brand that clearly shows the product form, intended use, directions, supply length, peptide amount where applicable, lab testing, support information, and Certificate of Analysis access

Quality GHK-Cu formulations buffer to pH 5.5 using citric acid or sodium phosphate and include chelating agents like EDTA to stabilise the copper complex

doi: 10.1038/nm962 37

Fatty acid extracts facilitate cutaneous wound healing through activating AKT, ERK, and TGF-beta/Smad3 signaling and promoting angiogenesis

Topical applications appear generally well-tolerated in small studies, but systemic safety, long-term effects, and drug interactions remain inadequately characterized