Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips What Are Peptides: Types, Cost, Used For, Benefits By age 30, your skin produces about 25% less collagen. By 40, that number can reach 40%. This decline affects more than just how your skin looks. It changes how it heals, The potential of GHK as an anti aging peptide Dou Aging Pathobiology and Therapeutics Effects of Copper Tripeptide on the Growth and Expression of Growth Factors by Normal and Irradiated Fibroblasts Jeffrey D. Pollard, Susan Quan, Thomas Kang, R. James Koch, 2005 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