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For hair-specific applications, some practitioners inject subcutaneously near the scalp to maximize local concentration
Never throw needles in the trash, where they could injure others
10.1152/ajpendo.1989.257.6.E916 Am J Physiol-Endocrinol Metab
It can also affect hormone levels, kidney function, and glucose metabolism
In lab and skin model studies, GHK-Cu shifts how fibroblasts behave, and fibroblasts are the cells that produce much of the collagen and elastin that keep skin firm
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