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 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Melatonin Hair Growth Serum GHK cu Stem Cells Scalp Hair Growth Serum STEMBOTANY GHK Cu Self care Saturday afternoon in full effect! GHK Cu mask along with collagen supplements to try to make this old beat up face look pretty again lol It's supposed to cover the whole