Now L Tyrosine 750mg 90 VegeCapsulesL Tyrosine is a conditionally indispensable amino acid required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as well as for the skin pigment, melanin.* Noradrenaline (norepinephrine) and adrenaline (epinephrine) are the main actors in the bodys response to acute stress and, along with dopamine, help to support a positive mood and mental alertness.* In addition, L Tyrosine is especially critical for the normal