Ghk Cu Hair Serum Etsy GHK Cu AHK Cu Hair Serum W Micro Needle Kit This combination kit provides GHK Cu and AHK Cu peptides in a topical serum formulation alongside a professional grade micro needle roller. , Designed GHK Cu (50 MG) Sigma Compounds Do you know your skin has a built in "Biological Architect"? It's called GHK Cu (Copper Tripeptide 1), and its only job is to tell your cells one thing: REBUILD. It's why your skin snaps