PDF] Regenerative and Protective Actions of the GHK Cu Peptide in the Light of the New Gene Data Semantic Scholar GHK Cu Physique Pharma GHK Cu (copper peptide) is actually something your body already makes when youre younger which is great, until it slowly starts disappearing., It basically tells your body to repair itself better. A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend GHK CU for Sale Tripeptide 1 3rd Party Tested US Made