Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health GHK Cu might be trending, but its not new., Before you inject yourself with this viral peptide, consider this., This copper peptide has been studied for years in skin repair and collagen signalling, Amazon.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 with Ghk Cu Intra Nasal Spray 50 mg 0.34 oz. Westend Medical Supply Time for a little GHK CU update for the people who are interested. Its day 9. I took a little break on day 5 just so my body didnt get too used to the peptides and Ill just keep going in this 5