GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or The GHK Cu copper peptide is one of the most underrated skin repair ingredients out there., Naturally found in the body, it plays a key role in collagen and elastin production, skin healing, and GHK Cu Copper Peptide Benefits, Uses & Safety Intra V GHK Cu Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration