GHK Cu (copper peptide) used topically is one of the most well studied skin repair peptides. Here's how it helps the skin, in practical terms: 1. Boosts collagen & elastin GHK Cu signals your skin Im always transparent about my skin struggles and try to be vulnerable to show my clients the real deal. Recently (in the past year) Ive started struggling with rosacea. I decided to give this What is GHK Cu? LIVV GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health GHK Cu Peptide Skin Cream Levers.Health