Iodine contributes to normal energy metabolism, normal cognitive function, normal nervous system function, and maintenance of normal skin. It also supports the normal production of thyroid hormones and normal thyroid function. Directions for use: Take 1 capsule per day. Ingredients: Per 1 capsule: Stabilizer: microcrystalline cellulose (E 460), coating agent (capsule): cellulose, anti-caking agents: silica (E 551) and magnesium stearate (E 470b), potassium iodide 200 mcg, All 150 mcg.