PSA] Albeit rare Copper peptide "uglies" are real and scary. Case report and looking for advices : r SkincareAddiction GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia 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 GHK Copper Peptide Concentrate, cumpr ingredient cosmetic 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. Wellness peptide craze: why people are injecting drugs 'not for human consumption'