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But the most important answer is regulatory and medical: injectable GHK-Cu is not FDA-approved, and this article should not be used as self-injection instruction

The foundational mechanism papers from the Washington State University lab that described how Dihexa works were retracted in April 2025 following a misconduct finding, with a third paper under an Expression of Concern since 2021

Cost and consistency also matter, since skipping doses interrupts the pulse pattern the body relies on for steady growth hormone support

The CagriSema trials used 2.4 mg as the target, and the Phase 3 monotherapy data also used 2.4 mg

Honestly, though, its a foolish economy

Pyruvate kinase M2 contributes to TLR-mediated inflammation and autoimmunity by promoting Pyk2 activation