Metabolism Minerals - Contains Iodine, Copper, Manganese, Vitamin B12, and the minerals naturally found in Kelp. Systems Support - Provides nutrients for the key thyroid allies - the adrenal and pituitary glands. Antioxidant Activity - Contains Selenium, Ashwagandha, and Schisandra which provide antioxidant potential. Building Blocks - Contains Copper, Zinc, Selenium, and L-Tyrosine, which are needed for producing thyroid hormones. High Quality - Made in the USA at a cGMP-registered facility. Third-party tested, high-quality ingredients, and correct dosages based on clinical studies. ThyrAid was formulated with carefully selected ingredients to provide thyroid support for individuals with underactive thyroid. Do not use if you have a hyperactive thyroid.