Copper Peptide Regenerating Serum for Glowing Skin and Hair Copper Peptide Hair Growth Conditioner GHK Cu for Hair Loss Hairgenetix Skin Perfection Ghk Cu Copper Peptide Powder 99.7% Guadeloupe Ubuy Let's talk peptides next up: GHK Cu GHK Cu is a copper peptide known for its role in skin health, healing, and overall rejuvenation. Naturally found in the body, it helps support GHK Cu: The Peptide That Supports Healthy Aging GHK Cu (copper peptide) is naturally occurring in the body and plays a role in supporting skin health, collagen production, and tissue repair. As