does ghk-cu bind copper Theoretical study of binding to GHK peptide GHK-Cu Research Peptide — Agonist
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Available from: [DOI] [PMC free article] [PubMed] [Google Scholar] 76.Le C-F, Fang C-M, Sekaran SD

A copper peptide serum, for example, might work best alongside barrier repair serums, calming products, or post-treatment moisturizers
Clin Gastroenterol Hepatol (2021) 19(11):232432.e6
Reitman uses a 32-gauge needle and can apply topical numbing if requested