Copper Peptides vs Retinol: Do You Need Both? Nubeean Noosa WHY WE'RE OBSESSED GHK Cu (oral): Supports collagen + elastin Encourages tissue repair Elevates skin quality overall Not anti aging. Regenerative. Shipping available nationwide For education and research only 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 + Vitamin C and Retinol? Heres How to Layer Them! , GHK Cu works wonders for collagen production, but how do you pair it with other skincare powerhouses like Vitamin C or Retinol?