Supplementing with tyrosine is thought to increase levels of the neurotransmitters dopamine, adrenaline and norepinephrine. By increasing these neurotransmitters, it may help improve memory and performance in stressful situations (4). Summary Tyrosine is an amino acid that the body produces from phenylalanine.

What does tyrosine do in the body?

Tyrosine is in all tissues of the human body and in most of its fluids. It helps the body build proteins in your body, and produce enzymes, thyroid hormones, and the skin pigment melanin. It also helps the body produce neurotransmitters that help nerve cells communicate.

How long does L-Tyrosine take to work?

Tyrosine supplements are usually taken at doses as high as 500-2000 mg. The best result comes when these are taken 3-60 minutes before working out.