**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.
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What it does
Tyrosine
Form not confirmedGrade —
In one small trial, L-tyrosine improved vigilance in male soccer players exercising in warm conditions.
Ingredients (1)
Other ingredients
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Lab testing
How to take it
On an empty stomach
Keep it away from protein-heavy meals
On the label
Suggested Usage: Take 1 capsule 1 to 3 times daily, preferably between meals.
Price check
$11.01
Cheaper than 81% of 38 tyrosine supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.