Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping Stem cell recovering effect of copperfree GHK in skin Choi 2012 Journal of Peptide Science Wiley Online Library Unlocking the Secrets of GHK Cu: The Revolutionary Peptide for Youthfu GHK CU Pure Pharma Australia You don't age the same way at every stage. In your 30s, it's about slowing decline. In your 40s, it's about rebuilding structure. In your 50s+, it's about restoring function. GHK Cu works