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 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 Retinol Vs Peptides Which Is Better? Science Becomes Her Intensive Anti Aging Serum with Copper Peptide(GHK Cu) and Hyaluronic Acid Peptides vs. Retinol Which is Better For Skin Health? Copper Peptides vs. Retinol: Which Anti Aging Powerhouse is Right for Pure & Cimple