GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Everything you need to know about GHK Cu WHAT IS IT? A copper peptide your body naturally produces but production drops by 60% by age 60. It's one of the most 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 GHK Cu Peptide Benefits for Skin and Hair LIVV Natural GHK CU Research Peptide Alpha Carbon Labs Peptide Therapy for Hair Growth: Explore Your Options