Peptides vs. Retinol Which is Better For Skin Health? Copper Peptides vs Retinol Can You Use Copper Peptides With Retinol? Most skincare stays on the surface., GHK Cu works deepersupporting your skin at the cellular level without the irritation cycle of retinol., No redness., No downtime., Just real support where it GHK Cu Peptides Serum TryDeloura 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