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? What is the safe topical dosing, duration, and contraindications for the copperbinding peptide GHKCu for wound healing or antiaging? The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B Oral Liposomal Copper GHK Liposomal GHK Cu Supplement