The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health GHK Cu is a copper peptide used in regenerative medicine to support collagen production, tissue repair, and cellular renewal throughout the body. It's for individuals looking to improve skin firmness, brightness, and visible Caregen Expands U.S. Retail Presence Through Partnership with 2San Caregen has partnered with U.S. healthcare distribution company 2San to expand its peptide based wellness products across the U.S. consumer retail market. Beginning