B12 Active provides 500 mcg of Methylcobalamin, the activated form of B12. Iron Support includes 3.6 mg of Ferrazone® XF (iron-EDTA), a food-grade source of iron. The Multi Vitamin contains a blend of essential nutrients, including Vitamin C (12 mg), Vitamin D3 as Cholecalciferol (500 IU), Vitamin E (15 IU), Thiamin (1.5 mg), Niacin (10 mg), Vitamin B6 (2 mg), Folate (400 mcg), Vitamin B12 as Methylcobalamin (12 mcg), Pantothenic Acid (10 mcg), Biotin (500 mcg), and Trace Minerals (Fulvic). The D3 Active formula features 5000 IU of Vitamin D3 (Cholecalciferol) with an adjustable dose for flexible supplementation.