GHK Cu is a naturally occurring copper peptide found in the body that plays a key role in skin regeneration, healing, and overall skin health. As we age, levels declinewhich is where topical Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: GHK Cu Copper Peptide Face Serum with Hyaluronic Acid Anti Aging Face Serum for Wrinkles, Firming and Moisturizing For Elastic and Smooth Skin : Amazon.ie: Beauty A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend