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Pituitary and extrapituitary growth hormone: pit-1 dependence
SOD1 and SOD3 contain copper and zinc, whereas SOD2, the mitochondrial enzyme, has manganese in its reactive centre
Evidence gaps No published human randomized trial has evaluated injectable GHK-Cu for cosmetic, hair, or wound endpoints
Lien K, Georgsdottir S, Sivanathan L, Chan K, Emmenegger U
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