2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care 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 LINK IN BIO GHK Cu is a powerful copper peptide studied for its potential to support skin rejuvenation, wound healing, hair growth, and inflammation regulation, promoting overall skin, cell, and tissue vitality. Hair Growth Serum Intense with Copper Peptide GHK Cu