As a complex, the B vitamins are essential for the proper functioning of the nervous system and are perhaps the most important nutritional factor for healthy nerve cells. The B vitamins also play a role in the conversion of carbohydrates into energy, in the metabolism of fats and protein, and in the...

Douglas Laboratories B-Complex is unique, including Metafolin, Methylcobalamin Vitamin B12, and Intrinsic Factor in its formulation. Metafolin contains only the S isomer of 5-MTHF and has been shown to be the only form of folate to be able to cross the blood-brain barrier. Studies indicate that meth...