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Methylation SupportB-vitamins in Active FormsHelps Maintain Homocysteine Levels Already Withing the Normal RangeQuatrefolic®A Dietary SupplementVegetarian/VeganMethyl-Action is formulated to support essential methylation with B-vitamins in their active forms. Healthy methylation is vital for normal homocysteine metabolism. Maintaining normal homocysteine levels promotes neurological cardiovascular eye and bone health.