GHK Cu 50mg Particle Peptides GHK CU COPPER PEPTIDE 5MG 10MG 50MG 100MG VIAL UMBRELLA Labs GHK CU ( 100mg ) LabSourced Peptides GHK Cu: The Peptide That Supports Healthy Aging GHK Cu (copper peptide) is naturally occurring in the body and plays a role in supporting skin health, collagen production, and tissue repair. As 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 Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health