Thyroid hormone precursor.  Morning energizer.

Used for formation of T3 and T4 thyroid hormones, L-tyrosine is also an important precursor for brain-stimulating catecholamines (dopamine, norepinephrine, and adrenaline) which support stress response mechanisms and ability to concentrate. Supplies 500 mg of L-tyrosine USP per each vegetarian capsule.

Suggested Use: 1 to 4 capsules daily between meals.