Protective effects of GHK Cu in bleomycin induced pulmonary fibrosis via anti oxidative stress and anti inflammation pathways ScienceDirect Copper peptide GHK Cu Wikipedia GHK Cu is everywhere right now. Hair growth, skin repair, inject this and look 25 again. You can inject GHK for years, but if the body receiving the signal isn't set up to 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