Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 What are the dosing regimens and potential side effects of GHK Cu (Glycyl Histidyl Lysine Copper) peptides in various conditions, including wound healing and neurodegenerative diseases? PSA] Finally, a Dr. explains the mechanism behind the "copper uglies" : r SkincareAddiction