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It doesn't directly affect testosterone, estrogen, or other sex hormones
Xue Q, Kang R, Klionsky DJ, Tang D, Liu J, Chen X
First, it did not use GHK-Cu: it used AHK-Cu, a related copper tripeptide
Loss of function glucose-dependent insulinotropic polypeptide receptor variants are associated with alterations in BMI, bone strength and cardiovascular outcomes
Time course effects of vanadium supplement on cytosolic reduced glutathione level and [PMID: 9398947] Laboratory literature summary: Time course effects of vanadium supplement on cytosolic reduced glutathione level and glutathione S-transferase activity
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