GHK Cu (Copper Peptide) 50mg 99.80% Purity Research Peptide Miro Biotech Perhaps the most commonly asked about question when it comes to GHK Cu is THE BURN. Let's learn! @summitrejuvenation GHK Cu (Raw) 1g Ion Peptide GHK Cu is the compound your body made at 25 and quietly stopped making. Most people find it in overpriced serums. Few understand what it actually does, or what happens when you're not