Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit GHK Cu Peptide Dosing PeptidesPower GHK CU QRP Nutrition 50 mg Copper Peptide I've been getting a lot of questions about GHK Cu, so here's a quick breakdown. GHK Cu is a copper peptide that naturally occurs in the body and plays a role in skin repair The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline