SHR # 2345 :: The Pep Talk: Copper Peptide GHK-Cu: Uses in Anti-aging and Regenerative Medicine - Dr. Carl Paige, MD - This tiny protein found naturally in humans and mammals is attached to copper. Early research showed it has the ability to reduce the effects of aging in a variety of tissue. Its effects are pronounced in skin where it acts to promote the production of supporting structures (extracellular matrix) in the skin, increase collagen synthesis, regulate copper levels, and activate reparative cells. Its small molecular weight makes it ideal for cosmetics. One French study showed it may regrow hair! It's currently being investigated as an anti-inflammatory to replace corticosteroids, for use in nerve regeneration, as a stem cell growth factor, as a DNA protectant, and as a general anti-cancer agent.