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Now that injectable GHK-Cu is legally available, some providers may suggest it for hair loss protocols

HUBERMAN: While I'm not opposed to that approach, you just want to make sure that the dosing, or I should say the relative dosing of each peptide is such that, you know, You're avoiding unnecessary increases in prolactin and cortisol, and that you're not hitting a pathway redundantly

Therefore, further investigations are needed to assess potential vascular effects of hyperhomocysteinemia-associated changes in the SAM to SAH ratio, which regulates SAM-dependent methyltransferases and hence, methylation reactions

Injection-site reactions like a persistent hard lump, spreading redness, warmth, or pus can signal irritation or infection