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IGF-1, produced primarily by the liver in response to growth hormone, mediates many of GH's anabolic and metabolic effects throughout the body
He Y, Yang G, Sun L, Gao H, Yao F, Jin Z, et al
It is synthesized primarily in the liver, though individual cells can help regulate their own intracellular glutathione levels based on metabolic need
A clinician evaluates how these peptides may fit into a structured plan focused on recovery, performance, and/ or sleep support
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