Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum 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 GHK Cu Peptide: Benefits for Tissue Repair, Healing, and Recovery Revolution Health & Wellness Copper Peptide Barrier Cream Yunasence GHK Cu with Ceramides YUNASENCE Your body already knows this peptide it just makes less of it over time. GHK Cu is a naturally occurring copper peptide that supports tissue repair, improves skin quality, and helps reduce inflammation