Right, let's talk about GHK Cu which sounds like a Wi Fi password but is actually your body's built in regeneration switch. Think of it as the Tony Stark of peptides: brilliant, blue, and Resetting Skin Genome Back to Health Naturally with GHK Springer Nature Link Stem cell recovering effect of copperfree GHK in skin Choi 2012 Journal of Peptide Science Wiley Online Library Selected Biomarkers Revealed Potential Skin Toxicity Caused by Certain Copper Compounds Scientific Reports Intermediate Cu(II) Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction Inorganic Chemistry