NAD+ + GHK Cu One could support cellular energy + longevity the other could support repair, collagen + glow. Both could be the ultimate inside out upgrade. Because looking better is cute NAD+ and GHK Cu aren't interchangeable! They're complementary One restores what's happening beneath the surface: cellular energy, mental clarity, vitality that lasts beyond a caffeine rush. The other rebuilds what you see: GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK