GHK Cu Peptide 100mg For Copper Binding Research Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu is one of my personal favorites for a lot of reasons, but I can say without a doubt that it's use effectively stopped and reversed, my receiving hairline. However, there are Advances in Peptide Based Chimeric Strategies for Targeted Protein Degradation Journal of Medicinal Chemistry