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Methylcobalamin is the active coenzyme form of B12, while cyanocobalamin is a synthetic form requiring conversion in the liver
Done wrong, though, you can damage the peptide before you ever inject it
Curr Neurol Neurosci Rep 22(7):375382
Jul-Aug 2002;36(4):271-276
All testing is conducted by accredited external laboratories PSPeptides does not self-certify
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