ghk-cu copper peptide clinical trial hair growth Serum with Copper Tripeptide-1 – Dual Peptide Scalp Treatment plus Licorice Root Extract : Beauty & Personal Care “Is GHK-Cu actually worth it?”
Description
4 Kilincoglu V, Yeter A, Servet E, Kangal M, Yildirim M
PMID 31316992

10.1371/journal.pone.0183282 62

More studies are needed before such strong statements can be made
