Amazon.com: GHK Cu Copper Peptide Supplement, Anti aging and revitalizing skin, strengthening hair roots: Precision nutrition capsules improve skin elasticity and increase hair density, 90 vegan capsules. : Health & Household Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum What is GHK Cu?, Its a naturally occurring copper peptide loved for promoting healthy skin and overall wellness at the cellular level., Heres why clients appreciate it , Key Benefits of GHK Cu GHK Cu is a powerful copper peptide that supports collagen production, skin and hair health, and tissue repair. It may help reduce fine lines, improve elasticity, and promote faster healing. Want to learn