1.L-tyrosine is a naturally occurring amino acid that is also available in supplement form.
2.L-Tyrosine is a nonessential amino acid (the body can produce it on its own) and its nutrient role is as a neurotransmitter, which act as chemical messengers to the body's 100 billion (or more) of nerve and brain cells.
3.L-Tyrosine helps form three important neurotransmitters: serotonin, dopamine, and norepinephrine; these are responsible for functions like memory, mood, appetite, and muscular coordination.
4.Clinical studies have shown that L-Tyrosine supplements help with depression, anxiety, and heighten the mood in just a matter of a few weeks. It also helps fight fatigue and irritability.