Iron-C provides a highly utilizable form of iron to support optimal muscle function. Iron-C helps transport oxygen and carbon dioxide throughout the body, which initiates muscle contractions.* Highly bioavailable form of iron* Helps to support muscle function* Made with hypoallergenic, vegan ingredients The major function of iron is to combine with protein and copper in the synthesis of hemoglobin. Iron is necessary to manufacture myoglobin, a transporter of oxygen found in muscle tissue, which causes the chemical reactions that initiate muscle contractions. Vitamin C enhances the intestinal absorption of iron.* Take 1–2 capsules daily, in divided doses, with meals. Serving Size: One Vegetarian Capsule Amount Per ServingVitamin C ... 175mg(as ascorbic acid)Iron ... 15mg(as iron glycinate and 50% as iron aspartate) Other Ingredients: hypoallergenic plant fiber (cellulose), ascorbyl palmitate, vegetarian capsule (cellulose, water)