Conclusion: Although GHK-Cu and Pal-GHK are effective and relatively skin permeable, their permeability could be successfully increased using permeation enhancement methodologies
References Munford, R
They can be difficult to image because they rapidly lose their defining characteristic, their crystals, when disturbed, secreting the crystal contents into the media
An increase in SERT expression leads to lower enteric serotonin levels and contributes to constipation-predominant IBS (IBS-C), while a decrease in SERT expression increases serotonin levels in the gut and can be a factor in IBS-D
Smits MAJ, Schomakers BV, van Weeghel M, Wever EJM, Wst RCI, Dijk F, et al
Gastrointestinal & cytoprotection: Reviews summarize mucosal protection and cytoprotective concepts across preclinical models (Sikiric 2019