Copper Peptides for Skin: The Science, Benefits, and Best Practices Hubmed 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK 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 Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn