Peptide Therapy for Hair Growth: Does It Really Work? IK Clinics I posted about GHK CU about two weeks ago and had a ton of people ask me questions about it in terms of how it works, but also asking about my personal experience. I am not done treatment yet, but in Copper Tripeptide For Thinning Hair Regrow Serum Essence Oil DHT Blocker GHK Cu Scalp Solution Empower Pharmacy Copper Peptide (Copper Tripeptide 1 GHK Cu) & Hair Growth All You Need To Know Bearded Chokra