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The binding of GHK to copper also silences the copper ions oxidative activity, allowing it to be delivered safely and in a bioavailable form to tissues that need it

[2] Second, in cultured dermal microvascular and fibroblast models, GHK-Cu exposure has been associated with increased vascular endothelial growth factor expression, a change that could enhance perifollicular microcirculation

The fluorescence was detected by fluorescence microscope (Nikon, Ts2R) and flow cytometry (BD, FACSCelesta)

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