A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend 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 for Skin Rejuvenation WeCare Pharmacy GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health 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 peptides from Transcend, and GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack?