Skin barrier strengthening : these peptides play a role in strengthening the skins protective barrier
Medical Disclaimer: GHK-Cu is not an approved pharmaceutical drug
It is produced mainly by the liver and is involved in multiple biological processes such as When glutathione levels decrease, the skin becomes dull, pigmented, uneven, and more prone to oxidative damage
See the 2025 BPC-157 literature and patent review by Jzwiak and colleagues in Pharmaceuticals (Basel) for the underlying chemistry
Side effects include abnormal sensations, dizziness, altered taste, insomnia, constipation, and dry mouth
Low blood flow limits oxygen and nutrient delivery