GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health Facial Serum w Copper Peptide (GHK Cu), 1 fl oz (topical), Quicksilver Scientific Eye Peptides Target Dark Circles & Puffiness biolabshop.co.uk Okay, real talk. This is my 1month progress on GHKCuno filter, no magic, just consistent repair work. , GHKCu is a naturally occurring copper pptide in our bodies that helps support collagen, 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 Koreana Skin GHK Cu Copper Peptide Mask Revitalizing & Firming Hydrogel Sheet Mask