What Is GHK Cu Peptide? Amazon.com: QUBIT GHK Cu Copper Peptide Face Cream 4% Peptides Moisturizer for Fine Lines, Wrinkles, Firming, Deep Hydration & Collagen 2400mg GHK Cu for All Skin Types, 30g : Beauty & Current glow from my GHK CU nose spray and face cream combo. Zero filter, just a skin tint and some mascara and I am good to go. no more heavy coverage Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level GHK Cu Peptide: Turn Back the Clock Naturally Calibrate Hydration