Pure Encapsulations · L-tyrosine · Capsules

Is Pure Encapsulations L-Tyrosine underdosed?

1 serving = 1 capsuleDirections: 1–4 servings a dayLabel as of 22 Nov 2023 · NIH DSLD

Verdict

500 mg–2 g a dayas the label directs

Not graded

Contains 2 g. Not graded: a 2023 meta-analysis found no effect on endurance; its evidence is for focus under stress, at about 150 mg per kg of bodyweight.

One capsule gives 500 mg.

What the label says

L-Tyrosine per serving
500 mg in 1 capsule
Servings a day
1–4 servings a day
L-Tyrosine a day, as directed
500 mg–2 g
Research dose
Not graded Evidence: Not graded
Recommendations: As a dietary supplement, take 1 capsule, 1-4 times daily, between meals.
The label's directions, as printed.

More about l-tyrosine: forms, timing and the studies behind the dose.

Same category, compared

All 11 L-tyrosine supplements we checked, ranked by dose (commission never changes the order).

ProductPer servingForm
Doctor's Best L-Tyrosine 500 mg500 mgCapsules
Jarrow Formulas L-Tyrosine 500 mg500 mgCapsules
Momentous Tyrosine500 mgCapsules
NOW L-Tyrosine 500 mg500 mgCapsules
NutraBio L-Tyrosine500 mgPowders
Nutricost L-Tyrosine 500 mg500 mgCapsules
Nutricost L-Tyrosine Powder1 gPowders
Pure Encapsulations L-Tyrosine (this product)500 mgCapsules
Source Naturals L-Tyrosine 500 mg500 mgTablets
Swanson L-Tyrosine 500 mg500 mgCapsules
Thorne L-Tyrosine500 mgCapsules

Where the reference doses come from

  1. L-Tyrosine, : .
  2. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 299062, including its servings a day.

For a supplement taken every day we judge the most the label's directions give in a day, and show the least. Read the full methodology or the corrections log.