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Neurotransmitter support; Mental focus and alertness; Thyroid hormone substrate; Stress response support
Adults with busy or demanding days seeking amino acid support for focus and those who prefer a simple single-ingredient formula.
Take 1 capsule 1 to 3 times daily, preferably between meals; taking away from protein-rich meals may help absorption.
Non-GMO; Not manufactured with wheat, gluten, soya, milk, egg, fish, shellfish, or tree nut ingredients; Produced in a GMP facility that processes other ingredients containing these allergens.
L-Tyrosine is a precursor for dopamine, adrenaline and noradrenaline and also contributes to thyroid hormone synthesis, which may support alertness and metabolic regulation.
Caution: Take between meals for better absorption; speak to a healthcare professional if you have hyperthyroidism, a history of melanoma, or use MAO inhibitors or mood-altering medicines because tyrosine can influence catecholamine and thyroid pathways.
Label Warning: For adults only. Consult a physician if pregnant or nursing, taking medication, or have a medical condition. People with hyperthyroidism, melanoma, or those taking MAO inhibitors or other mood‑altering medications should seek medical advice before use.
Who should be cautious: People with thyroid conditions, mood disorders, or a history of melanoma may need extra caution. Those on MAO inhibitors or other mood‑altering medicines should discuss with a healthcare provider before use.
Storage: Store in a cool, dry place after opening.
This product is guaranteed authentic and backed by our easy returns and refunds policy. Details
L-Tyrosine may support mental alertness and focus, making it a great pair with formulas designed to enhance cognitive performance and memory.
AI generated. Not medical advice.
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L-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, L-Tyrosine is especially critical for the normal function of the thyroid gland.
Take 1 capsule 1 to 3 times daily, preferably between meals.
Cellulose (capsule), Rice flour,, stearic acid (vegetable source) and silica.
Not manufactured with wheat,, gluten, soya, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
This extra strength product has more L-Tyrosine (750 mg per capsule) than our regular strength product (500 mg per capsule).
The L-Tyrosine used in this product is pharmaceutical grade.
For adults only. Consult a 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.
Natural colour variation may occur in this product.
Store in a cool, dry place after opening.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally be despatched with alternative packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and do not rely solely on the information provided by iHerb. This website has been machine translated as a courtesy to customers. iHerb does not represent or warrant that the translations are complete or error-free and iHerb is not responsible for any translation errors or omissions.
| Supplement information | ||
| Serving Size: 1 Veg Capsule | ||
| Amount Per Serving | %Daily Value | |
| L-Tyrosine (Free-Form) | 750 mg | * |
| * Daily Value not established. | ||
