Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Cart Total:
Customers Also Bought:

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

Our Price:
You Save:
$8.27 (41)
Earn 10% Loyalty Credit ?

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

Sorry, this product is no longer in stock.

In Stock
  • Expiration Date: May 2018
  • Shipping Weight: 0.36 lbs (0.16 kg)
  • 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)
Bundle Offer
Save $4.00 when you purchase these items today for only $18.63
Total: $22.63
Combo Discount: - $4.00
Together: $18.63

Sorry, this product is no longer in stock.

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.

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

N- Acetyl Tyrosine

Posted by 5112407508346135645 on Jan 23, 2016

Not getting good results

Verified Purchase

Was this review helpful to you?


Posted by 5044777402781116801 on Aug 02, 2015

I have all the symptoms of hypothyroidism and this product has changed my life. i have been taking it for a year and a half. i no longer have brain fog, exhaustion, hair falling out, weight gain (i have actually lost), dry skin, freezing in the winter, feeling sick in the summer from heat. all my symptoms are 95% better. this is the product to get for these symptoms.

Verified Purchase

Was this review helpful to you?


Posted by 5572167808035213944 on Apr 20, 2014

I started 1capsule a day to 25capsules per one swallow, but nothing has changed.just causes nausea and diarrhea. I drunk with sweet beverage, with vitamin c, with vitamin B or any othoer ways that suggested , but never works. or, my emptinesses are not serotonin or dopamine problems... for the moment, Ill take the Source Natural's N-Acetyl L-Tyrpsine and NOW's normal L-Tyrosine aggain.

Verified Purchase

Was this review helpful to you?

feel it?

Posted by kanaca on Nov 03, 2013

I can't really feel this working. Maybe I need to take more. Jarrow products are always the purest. Which is why I tried this, even though I could feel regular NOW l-tyrosine working.

Verified Purchase

Was this review helpful to you?

350mg of... Nothing

Posted by Health-Is-Wealth on Oct 25, 2013

I definitely notice when I take the L form, even on it's own - when I took this, nothing. Tried again (at different times) - more nothings. I notice some of the good reviews mention it's taken along with other things - perhaps that's the secret. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.

Verified Purchase

Was this review helpful to you?