Copper peptide questions we get asked all the time How often should you use it? Do you need to avoid the sun? If you're new, start once daily (evenings are great), Two Weeks on GHK CU by Rory Uphold The Ladies Room GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B I ran GHK Cu for 12 months so you dont have to (here are the results) GHK Cu 50mg Dosage Protocol PeptideDosages.com