Meet the peptide that dermatologists and longevity experts are obsessed with: Glycyl L Histidyl L Lysine Copper Peptide, What it does:, Smooths fine lines, Boosts collagen + elastin, Evens tone GHK Cu by HK Peptides Test Certificate Finnrick Analytics 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. Peptides for Men's Health at the Perito Clinic The Perito Clinic