GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia 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 GFC is prepared from the patient's blood in a closed system where platelets are activated ex vivo to release growth factors like PDGF, VEGF, EGF and IGF1, which are then injected into GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration Pickart 2015 BioMed Research International Wiley Online Library Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides Vascular Endothelial Growth Factor and Angiogenesis in the Regulation of Cutaneous Wound Repair Kelly E. Johnson, Traci A. Wilgus, 2014