GHK Cu HGH & Peptides Deus Medical What Is GHK Cu? How It Works in Research and Quality Signals Buy GHK Cu Peptide 50mg 100mg 99% Purity FREE Shipping Lets talk GHK Cu , GHK Cu is a naturally occurring copper peptide that supports:, Collagen production, Tissue repair, Skin rejuvenation, Reducing Inflammation , Healthy aging, As levels A GHK Cu face serum appears blue because the active ingredient, GHK Cu ( copper peptide), is naturally a blue colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue