GHK Cu (Copper Peptide) LeadWest Medical Now introducing one of my favorite peptides.. GHK Cu This is a naturally occurring copper peptide your body already uses to repair and regenerate skin. As we age, those levels decline and that's 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 Buy Glow Peptide Online GHK Cu + BPC 157 + TB 500 Compounded GHK Cu Cream: The Copper Peptide Breakthrough for Skin Repair & Anti Aging Restorative Compounding Pharmacy + Wellness GHK Cu Youthful Skin, Healthy Cells, Vibrant You.