glutathione is for what glutathione? Glutathione: An Incredible Ingredient for

IL-1beta regulates expression of Cx32, occludin, and claudin-2 of rat hepatocytes via distinct signal transduction pathways

A 2018 follow-up by the same authors in International Journal of Molecular Sciences extended the case with gene-expression data, showing GHK can up- or down-regulate thousands of genes implicated in skin regeneration and inflammation (Pickart et al., 2018)

[DOI] [PubMed] [Google Scholar] 9.Loh E., Mirkowski M., Agudelo A.R., Allison D.J., Benton B., Bryce T.N., Guilcher S., Jeji T., Kras-Dupuis A., Kreutzwiser D., et al

Initial studies on NIH-3T3 fibroblasts and U937 histiocytic lymphoma cells show that GHK-Cu and GHK-PEG stimulate fibroblast proliferation while attenuating U937 cell proliferation

First-pass metabolism : After absorption through intestinal walls, blood flows directly to the liver before entering systemic circulation