GHK Cu is a naturally occurring copper peptide known for its powerful role in skin repair, hair health, and cellular regeneration. Key Benefits: 1.Boosts Collagen & Elastin Helps improve skin firmness and elasticity. GHKCu Copper Peptide Therapy Skin & Healing Regeneration GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous Intermediate Cu(II) Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction Inorganic Chemistry Theoretical study of copper binding to GHK peptide ScienceDirect Cu Peptide Before and After: What to Expect for Skin and Hair