Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule This peptide reverses aging, And its been hiding in plain sight for decades., GHK Cu (Copper Peptide) is one of the most researched anti aging ingredients out there., Heres what it does:, GHK Cu Topical Cream Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum