Copper peptides better than tretinoin? #dermreacts #tretinoin #copperpeptide Copper Peptides vs. Retinol & Vitamin C: What to Choose? by DrBeautiology Medium Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy 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 Copper peptides + red light therapy = INCREDIBLE results : r 30PlusSkinCare