Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that Copper Peptide Hair Regrowth Formula GHK CU & AHK CU, Copper Peptide Hair Growth Treatment Serum For Men & Women Fruugo NO Copper Peptide GHK CU, AHK CU Peptide Hair Growth Treatment Serum Dual Peptides eBay Copper Peptide Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience Hair Growth Serum Intense with Copper Peptide GHK Cu