"B complex" covers an enormous range of quality, and the difference is almost always the form. This one uses methylfolate and methylcobalamin instead of folic acid and cyanocobalamin - which matters if you are one of the many people who do not convert the cheaper forms efficiently. What is inside, and why Folate as Quatrefolic (5-MTHF), 680 mcg DFE - already in its active form, so no conversion step is required. This is the single biggest difference between this and a drugstore B complex. B12 as methylcobalamin, 500 mcg - the active form, not cyanocobalamin. All eight B vitamins at working doses - 50 mg each of B1, B2, B3, B6 and pantothenic acid, plus biotin. Choline and inositol, which work alongside the B vitamins in methylation and in normal fat metabolism. One capsule a day, 60 per bottle. B vitamins are water-soluble, so bright yellow urine afterwards is just riboflavin and is completely normal. The detail METHYL B COMPLEX is formulated with eight essential B vitamins, choline, inositol, and folate to support energy production, and immune, cardiovascular and neurological health. How to take it1 or more capsules per day or as recommended by your health care professional. (60 capsules) WarningsIf you are pregnant or nursing, consult your physician before taking this product. Supplement Education (PDF) These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.