6 month GHK CU check in Main takeaway: skin transformation takes time. GHK CU peptide binds to copper and activates genes involved in wound healing, collagen synthesis, and skin remodeling. On the face, this translates 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 GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health The Notable Benefits of Copper Peptides for the Body GHK CU 50mg Vial Copper Peptide Pure Bio Labs