BPC 157 NAD+ GUK Cu Peptide Patch Medical Imaging and Therapeutics 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 GHK Copper Peptide GHK Cu Tripeptide 1 AGELYTIX NMN NAD GHK CU Topical Two power players. Very different roles. Let's talk NAD+ vs. GHK Cu NAD+ works behind the scenessupporting cellular energy, metabolic function, brain clarity, and overall longevity. Think internal optimization, from the inside