The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu Hyaluronic Acid Gel Wells Pharmacy Network GHK Cu Peptide Therapy Brea, CA Orange County GHK Cu (Copper Peptide) LeadWest Medical 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?