Improve your nutrition with Carlyle Iron Complex. This formula contains 18mg of Iron, Vitamin B12, Vitamin C and Folic Acid, which work together to better the effectiveness of iron in the body. Bulking Agent (Calcium Carbonate, Microcrystalline Cellulose), Vitamin C (Ascorbic Acid), (Ferrous Fumarate), Anti-Caking Agents (Magnesium Stearate, Silicon Dioxide), Folic Acid, Vitamin B12 (Cyanocobalamin).