Tumor angiogenesis: molecular pathways and therapeutic targets Nature Medicine PDF) GHK, the Human Skin Remodeling Peptide, Induces Anti Cancer Expression of Numerous Caspase, Growth Regulatory, and DNA Repair Genes Let's talk about a peptide that actually changes how skin and hair heal GHK Cu. GHK Cu (Copper Tripeptide 1) is a naturally occurring peptide that signals skin and hair cells to heal, regenerate, Food Derived TripeptideCopper Self Healing Hydrogel for Infected Wound Healing Biomaterials Research GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes