Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3 Dr. Brenner Labs GHK CU GHKCu (glycyl L histidyl L lysine copper) is a naturally occurring copper peptide found in the human body, particularly in plasma, saliva, and urine. It plays a key role in skin regeneration by promoting Cellular Glow Copper Peptide GHK Cu Serum for Face Copper, Collagen, and Controversy: Inside the GHK Cu Buzz GHK Cu: The Peptide for Regeneration This powerful copper peptide supports collagen production, accelerates wound healing, and promotes healthier, more youthful skin. Whether you're recovering from injury, managing inflammation, or just