L-Tyrosine

L-Tyrosine is an amino acid required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as well as for the skin pigment, melanin. In addition, L-Tyrosine is especially critical for the normal function of the thyroid gland. Tyrosine also helps improve alertness, mood, and focus. Not only is tyrosine produced in your body, but it is also formed from an amino acid, phenylalanine.