**L-Tyrosine** at 500mg per capsule in the preferred free-form, which your body absorbs more efficiently than the N-Acetyl (NALT) version. The label suggests 1-3 capsules daily, putting you at 500-1,500mg — right within the 500-2,000mg range studied for supporting focus and mental performance under stress. At even a single capsule, you're hitting the minimum effective dose.

Tyrosine is your body's raw material for making dopamine, norepinephrine, and thyroid hormones. The clinical research is clearest for acute stress situations — sleep deprivation, cold exposure, demanding tasks — where it helps preserve working memory and attention. If you're looking for a general cognitive boost during normal, low-stress conditions, the evidence is weaker.

Since tyrosine relies on **vitamin B6** and **vitamin C** as cofactors to complete the dopamine and norepinephrine pathway, you'll want to make sure you're getting enough of both from your diet or other supplements — they're not included here.