Even if absorption weren't an issue
Due to their imidazole ring, they possess unique acid-base abilities and under pH 6 are usually in a state of protonation, i.e., being positively charged ( Ka ) of imidazole rings of histidine residues often reflects the overall protein catalysis functions
Final Thoughts GHK-Cu offers a science-backed, regenerative approach to skin and hair research, with over 50 years of published work, roughly 4,000 documented gene interactions, and clinical trials showing measurable wrinkle reduction, increased collagen density, and improved hair-cell activity in models
They'll tempt you with their marketing promises, but beware the dangers hidden within
Cardiovascular safety A thorough QT study found no clinically relevant QTc prolongation, even at supratherapeutic doses