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 Peptide Therapy for Inflammation: A New Solution GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Your body made this peptide every day until you turned 30. Then it stopped. GHK Cu (copper peptide) is a naturally occurring tripeptide discovered in 1973. At age 20, your plasma levels sit GHK Cu Tripeptide 5 mg 60 Sublingual Tablets SuperSmart