The libraryFocus

L-Tyrosine

Holding your thinking together under acute stress is the one thing it's done in people.

Also called Tyrosine, L-Tyr, 4-Hydroxyphenylalanine, (S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid

Who it's forAny man taking tyrosine daily in a pre-workout or a focus stack.

The item

Three squares: proven in human trials. Two: a strong signal. One: early human data. Striped: the trials disagree.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.