Why You'll See Different Answers Across Studies Published research on GHK-Cu doesn't converge on one number because study designs vary widely
McDonald, H., Peart, J., Kurniawan, N., Galloway, G., Royce, S., Samuel, C
Pyke C, Heller RS, Kirk RK et al (2014) GLP-1 receptor localization in monkey and human tissue: novel distribution revealed with extensively validated monoclonal antibody
Fee, MD, FACS and Dr
[DOI] [PubMed] 10.Heidari R., Jamshidzadeh A., Niknahad H., Mardani E., Ommati M.M., Azarpira N., Khodaei F., Zarei A., Ayarzadeh M., Mousavi S., Abdoli N., Yeganeh B.S., Saeedi A., Najibi A
These effects appear to include both: upregulation of genes involved in repair suppression of genes associated with inflammation and tissue degradation In some experimental models, GHK has been shown to restore gene expression patterns associated with youthful tissue physiology