What is the optimal dosing regimen of GHKCu for topical skincare and woundhealing applications? How long will a 50 mg supply of GHKCu last when dosing 2 mg daily for five consecutive days followed by two days off each week? File:GHK Cu copper peptide as a research chemical. A youtuber video on how to dose, how to mix, how to reconstitute for research..webm Wikimedia Commons GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B