Information Reviews Ask Dr. Dan Product Description Ecological Formulas Kelp-with-Selenomithionate-Iodine is a dietary supplement providing marine Kelp that is rich in iodine and other essential trace minerals. Label Information Gluten Free Soy Free Ecological Formulas Kelp-w-Selenomithionate-Iodine Facts: Iodine (as potassium iodide) 150 mcg Selenium (as selenium methionate) 150 mcg Kelp (fucus vesiculous and ascophyllum nodosum) 200 mg Also contains: Gelatin, Cellulose, Magnesium Stearate, Silicon Dioxide.