PDF) Regenerative and Protective Actions of the GHK Cu Peptide in the Light of the New Gene Data Intermediate Cu(II) Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction Inorganic Chemistry 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 07 MARGOLINA c_04 LORD_c Resetting Skin Genome Back to Health Naturally with GHK Springer Nature Link