ghk-cu mechanism of action gene expression modulation The delays aging in Caenorhabditis elegans via coordinated regulation mitochondrial function and activation of DAF-16/SKN-1 pathways | Biogerontology GHK-Cu Peptide: Mechanism, Anti-Aging Research,

The signal is widely reported but thinly studied

Muralitharan RR, Zheng T, Dinakis E, Xie L, Barbaro-Wahl A, Jama HA, et al

Do not use in patients with known hypersensitivity to Hydroxocobalamin or cobalt

[DOI] [PubMed] [Google Scholar] 113.Wang X.Y., Qu M., Duan R., Shi D., Jin L., Gao J., Wood J.D., Li J., Wang G.D

Researchers took a closer look at the results after the main study was completed, and these findings were shared at a major medical conference (the EASD congress) in September 2025

This creates a theoretical concern that copper peptides might accelerate tumor development in individuals with active cancer or dormant tumors