Tyrosine is a supplement that may help improve alertness, attention, and focus. Depending on the dose, it may help boost physical and mental performance. But, not all research is conclusive, and ...

L-tyrosine is an amino acid that's often used in supplements to improve cognitive function affected by stress. Supplements containing L-tyrosine supplements may also help treat phenylketonuria ...

Tyrosine is an amino acid that people need for good health. The body makes it from phenylalanine, which is in various foods, including meat, dairy, and soy. Learn more.

Tyrosine is an amino acid, a building block of protein, which is important to health. It adds to mental sharpness and lowers the risk of depression. Learn about 6 foods that contain tyrosine.

At its core, 250mg of L-tyrosine provides the essential building block for thyroid hormones T3 and T4, ensuring your body has the raw materials it needs.