Think of Peptides as the Personal Trainer for your skin cells. While ingredients like Vitamin C brighten and Retinol renews, Peptides are busy behind the scenes sending signals to your skin Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com 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 Best Retinol Cream with Copper Peptides Benefits of Retinol: Anti Aging Skin Care Products that Really Work Science of Copper Peptides by Dr. Loren Pickart Skin Biology Copper Peptides