(Supports thyroid function)* Like all of our glands, the thyroid gland needs supportive nutrients from food or supplements to act as raw ingredient precursors for its proper function. Thyroid Stimulating Hormone needs to give the cells the message to synthesize Thyroxine. Thyroxine, known as T4, needs to be converted into active T3. This product provides botanical and nutritional enhancement of thyroid hormone production, peripheral conversion of T4 to T3, as well as receptor function and recognition of thyroid hormones. Clients with low thyroid hormone may suffer from excessive fatigue, depression, dry skin and brittle nails, inability to stand cold weather, memory problems and heavy or irregular menstrual periods. Please have your thyroid levels checked with your doctor.