Divi Scalp Serum ingredients (Explained) Copper TriPeptide 1, A miracle ingredient that helps restore hair growth from the roots. Try KERAGENE Hair Growth Booster serum with GHK Cu aka Copper TriPeptide 1 in its more effective form to accelerate hair Neurogan + Health GHK CU Copper Peptide Hair and Scalp Serum PrettyStick GHK Cu Copper Tripeptide Hair Serum: DHT Blocker, Fuller Looking Hair Soon as 7 9 Weeks 1oz Etsy GHK Cu Copper Peptide Hair Tonic for Fuller Looking Hair Full Size (30 mL)