L-Tyrosine
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
Hypromellose, Stearic Acid, Silicon Dioxide
Recommended Use
Suggested Usage: Take 1 capsule 1 to 3 times daily, preferably between meals.
Warnings
Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Persons with thyroid disease (hyperthyroidism), melanoma, or those taking MAO inhibitors or other mood altering medications should seek the advice of a physician before consuming this product. Keep out of reach of children. Not manufactured with wheat, gluten, soy, milk, egg, fish, shel
Frequently Asked Questions
What is NOW Foods L-Tyrosine's Formulate score?
NOW Foods L-Tyrosine scores 86 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is NOW Foods L-Tyrosine worth it?
NOW Foods L-Tyrosine scores 86/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in NOW Foods L-Tyrosine?
Each serving contains L-Tyrosine (500 mg). Serving size: 1 Capsule(s). 120 servings per container.
How do I take l-tyrosine?
Suggested Usage: Take 1 capsule 1 to 3 times daily, preferably between meals.
Who makes L-Tyrosine?
L-Tyrosine is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods L-Tyrosine third-party tested?
NOW Foods lists the following certifications and testing for this product: Gluten-Free, Dairy-Free.
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