Rigid flexible nanocarriers loaded with active peptides for antioxidant and anti inflammatory applications in skin ScienceDirect GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link How GHK Peptide Works Signaling GHK acts as a switch for skin repair: Interacts with adenosine receptors reduces inflammation Activates MAPK ERK, PI3K Akt, TGF pathways Stimulates fibroblasts & keratinocytes boosts collagen, elastin GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration Pickart 2015 BioMed Research International Wiley Online Library The growth hormone receptor: mechanism of activation and clinical implications Nature Reviews Endocrinology