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The molecule is permeable to cell membranes (confirmed by Caco-2 assay) and highly selective, without inhibitory effect on other SAM-dependent methyltransferases

The formulation contains purified water for injection combined with 0.9% benzyl alcohol as the sole preservative

synthesized, batch-tested research material Certificate of Analysis (HPLC + Mass Spec) available on request Discreet, tracked shipping Handling Store as a powder at 28C, protected from light and humidity

A 2022 meta-analysis of 12 studies reinforced this, showing methylcobalamin reduced stroke risk by up to 43% in at-risk groups, independent of folate status

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