Copper Peptide 10% GHK CU, 5% AHK CU with Oligopeptide 1 Hair Treatment Serum eBay Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Mall of California Ghk Cu Shampoo Copper Peptide Hair Growth Best Peptide for Hair Growth Copper Peptide Shampoo GHK Cu 50mg 10mL Vial: Automatic Refills Celia Health 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. Copper Peptide 10 GHK Cu 5 AHK Cu Hair Growth Serum