GHK Cu 10 g (10% Concentrate, 100,000 ppm) Lrak Technologies 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 Copper Peptide Regenerating Serum for Glowing Skin and Hair GHK Cu Injectable Team Wellcore GHK Cu Copper Peptide Hair & Scalp Serum GHK Cu Copper Peptide Serum 1% Conc. Hair and Skin Boost Collagen *BEST VALUE! eBay Australia