From the manufacturer
WP THYROID - NATURAL THYROID MEDICINE
WHEN PURE MATTERS
Looking for a Natural hypothyroidism treatment?
Then you've come to the right place. WP Thyroid is a pure, all-natural hormone replacement option for when your thyroid is not producing.
*Simply pure and consistent
*Only 2 all-natural inactive ingredients: Inulin (from chicory root) & Medium Chain Triglycerides (from coconut)
*T4 & T3 replacement hormones (desiccated porcine thyroid)
*Thyroid cofactors (T1, T2, calcitonin and iodine) naturally occur in trace amounts
*Does not contain any artificial colors or flavors, corn, peanut, rice, gluten, soy, yeast, egg or fish/shellfish...