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Patience during plateaus prevents counterproductive behaviors like excessive restriction or abandoning the protocol

The copper ion confers catalytic activity: GHK acts as a copper chaperone, delivering Cu to cuproenzymes including superoxide dismutase 1 (SOD1), cytochrome c oxidase (Complex IV), lysyl oxidase (LOX), and ceruloplasmin

Many women choose to use a GHK-Cu serum in the morning (under your daily moisturizer with broad-spectrum sun protection) and then use a retinol or vitamin C at night to avoid the sun sensitivity that can be caused by retinols

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