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[DOI] [PMC free article] [PubMed] [Google Scholar] 52.Zhang S., Xie C., Lin J., Wang M., Wang X., Liu Z

GHK-Cu functions as both a signal peptide (triggering collagen synthesis) and a carrier peptide (delivering copper)

TL;DR: The Best Peptide for Hair Growth GHK-Cu (copper peptide) is the clear winner

Cabrera et al., 1987), and these seminal discoveries have since sparked multiple lines of research to further elucidate the many branches and functions of this signaling pathway
