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Barely noticeable

In vitro and animal studies suggest GHK-Cu stimulates collagen synthesis and fibroblast activity

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By upregulating key genes such as interleukin-17 (IL-17) and retinoic acid receptor-related orphan receptor gamma t (RORt), which are essential for Th17 cell differentiation and inflammation regulation, STAT3 effectively amplifies the inflammatory cascade reaction (Atreya et al., 2000

Section 5 says

This story originally appeared in British GQ.
