A high-quality, high-dose preparation formulated with all the vitamins of the B-complex in coordinated, high dosages. This formulation includes the activated forms of vitamin B2, B6, and folic acid as 5MTHF glucosamine, which is especially important for individuals whose bodies have limited ability to activate folic acid. Vitamin B12 is included as MHA-formula, containing all three naturally occurring forms of the vitamin. The vitamins B1, B2, B6, B12, niacin, and biotin support the maintenance of normal nervous system function. Additionally, vitamins B1, B6, B12, folic acid, niacin, and biotin contribute to normal mental function. This supplement is further enhanced with natural phosphatidylserine from sunflower lecithin.