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doi:10.1016/j.redox.2024.103237

Carboxypeptidase enzymes degrade unprotected GHK within hours of topical application, which is why encapsulation and formulation pH matter as much as concentration

Instead of simply averaging the results, it builds a mathematical model that accounts for multiple variables at once (e.g., needle depth, frequency, treatment duration, minoxidil use)

The antioxidant properties of HC are conditioned to the size of the molecule: the lower the molecular weight of peptides, the greater the ability to donate an electron or hydrogen to stabilize radicals

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