NOW L-Tyrosine 500 mg (120 Capsules)

120 capsules
by NOW
Product ID: NOW80162
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NOW L-Tyrosine

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.


    • Supports overall metabolism.
    • Important in the formation of neurotransmitters involved in mood regulation.
    • May be helpful for hypothyroidism.
    • Pharmaceutical grade.
    • Easy to swallow capsule form.

Directions: Take 1 capsule 1 to 3 times daily, preferably between meals.

Supplement Facts
Servings Size: 1 Capsule
Servings Per Container: 120
Amount per Serving % Daily Value
L-Tyrosine 500 mg
* Percent Daily Values are based on 2,000 calorie diet.
Daily Value not established.

Other Ingredients: Gelatin (capsule), Magnesium Stearate (vegetable source) and Stearic Acid (vegetable source).

Contains no: sugar, salt, starch, yeast, wheat, gluten, soy, milk, egg, shellfish or preservatives. May contain traces of corn.
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 con sum ing this product. Keep out of reach of children.
Store in a cool, dry place.
Take 1 capsule 1 to 3 times daily, preferably between meals.

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Customer Reviews

Based on 5 reviews
Shirley Soon
Great for positive emotions

I researched and found tyrosine strengthens the frontal cortex of the brain where positive emotions originate. Good for people with depression I think.

Ana A.D.
Good product!

I've purchased Now L-tyrosine for relieving my depression symptoms.It really works.After one hour of taking it I can feel a difference,I feel more relaxed,difficult emotions subside.I am taking 500 mg in the morning or during the day,not every day.Sometimes it works immediately,sometimes I feel better after 2 days.I guess it depends on dopamine build up in the body.No side effects other than some days I feel jittery a little bit,but nervousness disappears in 2 hours.I would definitely recommend this product.

NOW is a great brand.

Tyrosine is an amino acid that is needed by the thyroid gland and the adrenal glands. The thyroid uses it to produce the thyroid hormones T3 and T4 (the T stands for Tyrosine). The adrenal glands also need it to produce adrenal hormones. The body does produce it, but if it is lacking in your diet, or your body is not producing enough, your energy levels and ability to deal well with stress decline. I personally am taking at this time 1 capsule of this Tyrosine in the morning and 1 capsule of NOW 5-HTP 50mg at night. These two balance each other very well. Tyrosine raises dopamine levels, 5-HTP raises serotonin levels, so by taking both supplements together it helps to keep the neurotransmitters balanced in the brain. Dr. Julia Ross has researched and written extensively on the use of these supplements both individually and together. I highly recommend reading her work for more information before deciding to use them so that you are well informed on their uses and risks. Also, they are not meant for long term chronic use because of their effects on the brain's neurotransmitters. Therefore knowledge of their actions on the body is definitely recommended before taking!


Fast and accurate

Jennifer H.
Now L-Tyrosine - Clarity and Concentrwtion

This is a great product. I've been using Now products for quite awhile and feel better when I use them. Tyrosine helps me with my workouts and gives me a clear mind and focus on my work. I would suggest it to others and while many supplements and vitamin companies are in question to how much is filler and real product - mislabeling - I hope and trust will stay on this continuing issue and deliver the most effective products as the research comes in and they do their own research on the products the distribute. It is a convenient and friendly company (customer service) and I plan to continue to use them.