Pure Difference: All Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts, peanuts, gluten, artificial colours, flavours, sweeteners, coatings and shellacs, GMOs, unnecessary binders, fillers and preservatives. Pure Quality: Our thyroid tablets are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity. 30 - 60 Days of Supply: The recommended dosage of this thyroid supplement is 2 capsules daily, with a meal, or as directed by a healthcare professional. Nutritional Support: Iodine contributes to the normal production of thyroid hormones and to normal energy-yielding metabolism. Iodine and selenium contribute to normal thyroid function. Vitamin C contributes to the reduction of tiredness and fatigue. Active Ingredients: Comprehensive blend of vitamins, minerals and plant extracts featuring nutritional co-factors vitamin A, iodine, tyrosine, selenium and zinc.