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Karanicolas for comments on the manuscript
If youre curious about trying a GHK-Cu serum or other copper peptide skin care products: Look for formulations containing copper peptides (around 0.11% is typical in cosmetic products as higher percentages are less commonly standardised)
And yet somewhere in my fifties I started feeling hungry
Long-term human safety data are not yet established
doi:10.1002/14651858.CD009484.pub2
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