Hemostat has a type of iron that is the most bioavailability and it is also very gentle on your stomach. Each tablet has 108mg of elemental iron which is readily absoebed in your body! Hemostat is gentle on your stomach and most of all it works! On average it has been shown to increase hemoglobin levels at least 1.5-3 mg/dl within 5-10 days. Hemostat was manufactured in America, utilizing one of the best vitamin companies in the country! No additional supplements need to be added to increase your levels!