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Glutathione is a small molecule made from three amino acids: glutamate, cysteine, and glycine

Copper ions in GHK-Cu can inhibit up to 90% of type 1 5-alpha reductase, potentially reducing DHT-related follicle miniaturization without systemic hormonal effects

NQO1: quinone oxidoreductase 1

This is shown in respiratory chain complex enzyme activity (176) and oxidative stress (measured by total antioxidant capacity and plasma 15-F2t-isoprostane) (177)

Some users respond well to very low doses, while others require more to notice effects

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