The Peptide Plastic Surgeon: A Review of Evidence on Regenerative Peptide Supplementation and Potential in Aesthetic Plastic Sur GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link PDF) GHK, the Human Skin Remodeling Peptide, Induces Anti Cancer Expression of Numerous Caspase, Growth Regulatory, and DNA Repair Genes PDF) Regenerative and Protective Actions of the GHK Cu Peptide in the Light of the New Gene Data