Iodine Synergy™ contains potassium iodide in a 10 mg therapeutic dose for supporting thyroid function, including healthy production of thyroid hormones, and the health of breast and prostate tissue. Typical supplementation range is 10-50 mg until normal iodine ranges are seen in testing. Potassium iodide is a weak salt and easily splits apart in the gut leaving free iodide ions to join together forming I2 Iodine, which is also needed by the breast and prostate for optimal health.