Horbäach Iodine Liquid Drops 150 mcg are a concentrated liquid iodine supplement providing 150 mcg of iodine per serving from iodine and potassium iodide. The formula is blended with purified water and is designed as a convenient liquid source of this essential trace mineral. It is vegetarian, non-GMO, gluten-free, and free from wheat, yeast, milk, lactose, soy, artificial colours, flavours, sweeteners, and preservatives. The 2 fl oz (59 mL) bottle mixes easily with water.