Why Collagen Loss Accelerates After 40: The Role of GHK Cu in Menopaus Pure & Cimple Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that GHK Cu Peptide: Mechanism, Anti Aging Research, and Regenerative Benefits Your body made this peptide every day until you turned 30. Then it stopped. GHK Cu (copper peptide) is a naturally occurring tripeptide discovered in 1973. At age 20, your plasma levels sit