L-Tyrosine

What is it? Tyrosine is an amino acid which is an essential precursor or "building block" to the neurotransmitters responsible for maintaining metabolic rate. L-Tyrosine is the direct precursor to stimulatory neurotransmitters such as epinephrine and noropenephrine (i.e. adrenaline) as well as certain thyroid hormones and dopamine. In other words, L-Tyrosine is a precursor to important