GHK Cu (Copper Peptide) has emerged as one of the most promising regenerative peptides for hair restoration due to its ability to stimulate follicular activity, improve scalp circulation, reduce inflammation, and prolong the GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer PDF) The effect of tripeptide copper complex on human hair growth in vitro Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips