At the genomic level, research has identified over 4,000 genes whose expression is influenced by GHK-Cu, with a net shift toward younger, more regenerative profiles including upregulation of DNA repair genes and suppression of inflammatory cytokines
Expression of resistance factors (P-glycoprotein, glutathione S-transferase-pi, and topoisomerase II) and their interrelationship to proto-oncogene products in renal cell carcinomas
GHK-Cu, in contrast, delivers copper(II) ions to metalloenzymes such as lysyl oxidase (critical for collagen and elastin cross-linking), superoxide dismutase (antioxidant defense), and cytochrome c oxidase (mitochondrial respiration)
What we do have is something arguably more meaningful: years of real-world evidence from thousands of physicians using these compounds under careful clinical supervision, with thousands of patients, over a decade or more
This study represents preliminary pilot-level evidence with a small sample size