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demonstrated dose-dependent proliferation effects on cultured human dermal papilla cells exposed to GHK-Cu at physiologically relevant concentrations.3 Subsequent work has confirmed that this effect translates into upregulation of genes associated with anagen-phase activity including VEGF, FGF-2, and IGF-1, the three growth factors most directly implicated in hair-cycle regulation

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Arch Biochem Biophys 536(2):152157

Mansoor, K., Bardees, R., Alkhawaja, B., Mallah, E., AbuQatouseh, L., Schmidt, M., & Matalka, K

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