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Things You Should Know Clean the injection site with alcohol and a cotton ball
Cells quickly pull it in and use it for detoxification and antioxidant work
Human Studies Human data remain limited, and most studies are small, single-center, or use copper peptide formulations combined with other ingredients (which makes it hard to isolate GHK-Cu's specific contribution): A 2016 Lee et al
Graham IM, Daly LE, Refsum HM, Robinson K, Brattstrm LE, Ueland PM, Palma-Reis RJ, Boers GHJ, Sheahan RG, Israelsson B, Uiterwaal CS, Meleady R, McMaster D, Verhoef P, Witteman J, Rubba P, Bellet H, Wautrecht JC, De Valk HW, Lis ACS, Parrot-Roulaud FM, Tan KS, Higgins I, and Garcon D (1997)
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