GHK Cu (50mg) GHK Cu Copper Peptide Powder for DIY Skincare, 99% Martinique Ubuy Peptide Sciences GHK Cu 50mg Copper Egypt Vitamins 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 If youre playing with raw GHK Cu, heres the secret that makes it actually work on your skin: mix it with hyaluronic acid. , Not microneedling, not fancy devices just a clean HA serum as the