Search Results for "L-Tyrosine"

L‑Tyrosine is a building block for dopamine, norepinephrine, and epinephrine—the brain’s “go” chemicals. In high‑stress moments (cold, noise, sleep loss, military drills), tyrosine can top up these neurotransmitters so thinking and tracking tasks don’t fall apart. Think of it as a temporary reserve tank for focus when the pressure is on—not an everyday cognitive booster.

• Maintain focus during acute stress
• Support cognitive performance when sleep‑deprived or fatigued
• Build short‑term stress resilience in demanding environments

Evidence

Acetyl L‑Tyrosine (ALT) is a modified form of the amino acid tyrosine—the raw material your body uses to make dopamine, norepinephrine, and epinephrine. In high‑demand situations (sleep loss, heat/cold, intense mental workload), tyrosine availability can bottleneck, and supplementing tyrosine has been studied for keeping thinking speed and working memory online. ALT is marketed as a better‑absorbed tyrosine, but most human performance studies used plain L‑tyrosine; evidence for ALT itself is limited.

• Maintain mental performance during stress
• Support focus and working memory when sleep‑deprived or under heavy cognitive load
• Help sustain attention in demanding tasks

Evidence