GHK Cu Peptide Serum EQLibrium BPC 157+GHK Cu Face Serum Skin Repair & Hydration Pure Tides Therapy Blue Copper Peptide (GHK Cu) Guide: Anti Aging Science, Formulation & OEM DUO Hair Growth Serum and Scalp Rejuvenation Pure Prescriptions Not all Copper Peptides are created equal If you've tried copper peptides before and saw no change, here is why: Concentration and Stability. Most serums use a diluted solution that barely scratches