12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK GHK Cu Skin Serum Peptide Rejuvenation GOAL.MD Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Biossance Two Weeks on GHK CU by Rory Uphold The Ladies Room PSA] Finally, a Dr. explains the mechanism behind the "copper uglies" : r SkincareAddiction