GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has Buy GHK Cu Peptide 99%+ Purity GHK Cu for Research GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution Hot take: Not FDA approved isn't the mic drop people think it is. A LOT of things in your daily routine aren't FDA approved either and you probably used them all