Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health Unlocking the Secrets of GHK Cu: The Revolutionary Peptide for Youthfu There is no definitive answer as to whether retinol vs peptides are better for anti aging. However, there is a lot more research backing retinol as an effective ingredient, while peptides are still Breaking: more people are starting to explore copper peptides over retinol Not because retinol is bad but because people are beginning to understand how different ingredients actually work. GHK Cu is something your Copper Peptides in Skincare: Benefits, Science & How to Use