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Jarrow Formulas, N-Acetyl Tyrosine, 350 mg, 120 Capsules

By Jarrow Formulas

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  • Product Code: JRW-15051
  • UPC Code: 790011150510
  • Package Quantity: 120 Capsules
  • Dimensions: 5 x 2.7 x 2.7 in, 0.25 lbs (0.11 kg)
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Product Overview

  • Supports Brain Function
  • Dietary Supplement

N-Acetyl Tyrosine is an acetylated derivative of the amino acid L-tyrosine. Ordinary L-tyrosine is less stable and also less soluble in water, which may result in reduced bioavailability. Acetylation enhances the solubility and stability of certain amino acids.

N-Acetyl Tyrosine supports brain function by supporting the synthesis of the catecholamines norepinephrine and dopamine (neurotransmitters).

Suggested Use

Usage: Take 1 capsule 1 or 2 times per day, preferably with juice on an empty stomach or as directed by your qualified healthcare professional.

Other Ingredients

Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of gelatin.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.


Note: If you have a medical condition (especially bipolar, high blood pressure, or a history of malignant melanoma), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially MAO inhibitors), consult your qualified healthcare professional before using this product.

Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 120
  Amount Per Serving % DV
Vitamin B6 (as pyridoxine hydrochloride) 5 mg 250%
N-Acetyl Tyrosine 350 mg *
* Daily Value not established.

iHerb Customer Reviews

5 Stars
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1 Stars

N-Acetyl Tyrosine over L-Tyrosine

Posted by Reviewer1324540 on May 18, 2008

This type of Tyrosine is ideal for anyone wanting optimal benefit. The N-Acetyl Tyrosine is soluble in water unlike the L-Tyrosine. Also the dosing is much smaller considering the absorption is greater. I liked that Jarrow put Vitamin B6 in it because that vitamin is needed for Tyrosine's conversion to certain neurotransmitters. I recommend this whether you take it in capsule form or open up the capsules and take it as a powder. Any N-Acetyl Tyrosine is worth the extra cost compared to the L-Tyrosine in my opinion.

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19 people found the following review helpful

precursor for dopamine and thyroid hormone

Posted by Reviewer1888613 on Jan 03, 2010

Dopamine is responsible for the feeling of well-being and prevention of depression. As there are no drugs available to boost this neurotransitor for non-Parkinson's patients, tyrosine is the only substance available to take to boost these levels. (and the n-acetyl form has shown to be most effective). Most commonly depression is related to a serotonin deficiency, but the second most common neurotransmitter assisting depression is dopamine. If 5HTP doesn't help (to raise serotonin levels) then the logic next step is to try tyrosine. It's best taken on an empty stomach. It's good to boost thyroid hormone in patients with hypothyroid as well.

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19 people found the following review helpful

Good stuff

Posted by Reviewer1376893 on Aug 15, 2010

Shortly after taking it feel slightly more motivated and interested in life in general.

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12 people found the following review helpful

Works perfectly

Posted by Reviewer1556927 on Nov 23, 2009

This version of Tyrosine works much better than regular Tyrosine I've tried. I highly recommend this product.

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11 people found the following review helpful

Strong Tyrosine

Posted by Reviewer2982127 on May 16, 2008

These tablets are a fast and strong acting form of Tyrosine. Tyrosine has been tests in areas of schtozophrenia and found to be completly safe. I use it to combat my side effects from Aripiprizole with a small dose of 5 HTP it lets me feel more active for sports and life.

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7 people found the following review helpful

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