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 Peptide: What It Does for Body Composition and Metabolic Health Intermediate Cu(II) Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction Inorganic Chemistry Copper Peptides: GHK Cu is your skin's built in botox Fatskn GHK Cu: The Midlife Peptide Your Skin Has Been Missing (and Why It's Not Just About Wrinkles) Relished Food Holistic Nutrition Peptide Therapy for Hair Growth: Explore Your Options