Thera-BItem Description Thera B provides a full complement of essential B complex vitamins and related nutrients in high potency amounts. Inclusion of Metafolin* L 5 methyltetrahydrofolate (L 5 MTHF), a bioactive form of folate, ensures more immediate effects than folic acid on metabolism. As the only form of folate that crosses the blood brain barrier, L 5 MTHF is especially useful for supporting neurological system requirements for this nutrient.*
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