GHK Cu vs NAD and why they're not the same thing They both get labeled anti aging but they work in totally different ways GHK Cu = skin you can NAD+ vs GHK Cu What's the difference & which one is right for you? Although both treatments are powerful, they don't do the same thing. In our carousel, we break down GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes