Copper Peptide Serum Anti Aging Face Oil for Glowing Skin Cellular Glow Copper Peptide GHK Cu Serum for Face THE CLINIC Fitish 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 Powerock Pharma GHK CU 50mg Snapklik.com : Skin Perfection Copper Peptide Serum GHK CU 1% For Face & Hair Copper Peptides For Skin, Hair, & Scalp 1% Blue Liquid For Face, Neck, Body, Scalp Multi Use Serum Booster