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 GHK CU copper serum + dermal roller PURE GHK Cu 50mg (3 PEPTID MEDI) 99.8% Purity eBay Serum with copper peptides Super GHK Copper 16% Intensive 15 ml biolabshop.co.uk Copper Peptide Hair Growth Serum AHK Cu & GHK Cu + Licorice Peptide Labz Copper Peptides All About GHK Cu Best Copper Peptide Serums How to Use