L-Tyrosine 500mg X 100 CapsulesL tyrosine is a non essential amino acid and a precursor to adrenaline, norepinepherine, dopamine and L dopa. These neurotransmitters are involved with mental function, mood, satiety and response to stress. L tyrosine is also involved in the production of thyroid hormone and the skin pigment melanin. Free form amino acid, high purity, well tolerated. Why Take Additional Individual Amino Acids In Supplement Form? When taken individually, amino acids