L-Tyrosine
Research: 5/6Safety: 5/5$9/month
Amino acid precursor to dopamine and norepinephrine. Supports focus under cognitive stress. NSF Certified Facility.
Evidence Scores
Research Quality5/6 — Multiple Human Trials
Safety5/5 — Proven Safe / Dietary Staple
Trust Index: 8/10Transparency Score
Full Disclosure: Affiliate link ahead. We get paid if you buy. Science says it works anyway.
Recommended Dose
500-2000mg before stress
Health Outcome Impact
Focus & Concentration4/5
Mood & Stress3/5
Where to Buy
Monthly Cost:$9
Research References
Research last reviewed: 2026-02-16
Products last reviewed: 2026-03-02
Prices last updated: 2026-03-18
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