L-Tyrosine
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 100% of ingredients have research evidence
What the Evidence Says
AI-generated · Qwen 3.6 · grounded in 1 source · methodologyL-Tyrosine is a precursor to dopamine and norepinephrine, often used to support cognitive performance under stress. Research provides moderate evidence that it may help maintain alertness during demanding tasks. However, overall clinical evidence coverage for this specific ingredient profile remains limited.
AI-generated summary based on research evidence. Not medical advice.
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Label Data
Supplement Facts — Evidence Check
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Product Information
Directions for Use
Suggested Usage: Take 1/4 teaspoon in juice or water, preferably between meals, 1 to 3 times daily.
Warnings & Precautions
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, corn milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Formulation Notes
Pure Powder
Neurotransmitter Support Pharmaceutical Grade Healthy Glandular Function Supports Mental Alertness
Non-GMO
Triangle K (Kosher)
Not manufactured with wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients.
NOW L-Tyrosine is Pharmaceutical Grade.
Additional Information
Tyrosine is a conditionally indispensable amino acid required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as well as for the skin pigment, melanin. Noradrenaline (norepinephrine) and adrenaline (epinephrine) are the main actors in the body’s response to acute stress and, along with dopamine, help to support a positive mood and mental alertness. In addition, Tyrosine is especially critical for the normal function of the thyroid gland.
Triangle K (Kosher)
Amino Acids Family owned since 1968.
Natural color variation may occur in this product. This product is sold by weight not volume.
Store in a cool, dry place after opening.
GMP Quality Assured
Product Details
Research Evidence
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.