2 weeks in on GHK Cu and the glow is REAL. Brighter complexion More even skin tone Less breakouts Softer fine lines Thicker, fuller hair This is just 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 Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Biossance Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Mall of California GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B