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L-Tyrosine , 120 Capsules

Essential Amino Acid!*
Increases Metabolism And Supports Healthy Mood And Mental Functions!*
7.9  out of 10  (14 Reviews)

Product Overview

Now Bottle


  • Healthy Glandular Function*
  • Essential Amino Acid

Supports Mental Alertness*


Available In Capsules

NOW L-Tyrosine is an essential amino acid and a precursor of the neurotransmitters dopamine, norepinephrine to help maintain normal and health mental functions and support your mood or well-being.* In addition L-Tyrosine may also support healthy adrenal, thyroid and pituitary function. One thing it also does is convert to the thyroid hormone thyroxin. This plays an important role in controlling metabolic rate, not to mention skin health, mental health, and growth rate!*

Ratings & Reviews

Overall Rating
14 Ratings
Verified Buyer Rating
7 Ratings
By clicking the button above, you agree to entering the Bodybuilding.com Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Jul 01, 2016
Verified Buyer

Easy to take, good focus!

Apr 02, 2016

Product is great. Really helps me focus when im working on studying. I usually mix it with some caffeine and huperzine A. Relatively cheap and gets the job done. Highly recommend

Feb 28, 2015
Verified Buyer
No written review.
Aug 29, 2014
No written review.
Jun 26, 2014
Verified Buyer

I bought this product to help with dopamine production in my brain, but I was pleasantly surprised. I wasn't expecting any gains in the gym from this product, but I must say I experienced strength and endurance gains, as well as feeling better mentally from the additional dopamine production. I will be buying again.

May 11, 2014
Verified Buyer

This product is very good. I take 2 pills a day and that sets it off for my. 1 in the morning and another at the gym, but for some reason when i'm at the gym the effects is less. I still think its a great product highly recommended. 9/10

Aug 01, 2013
Verified Buyer

Tbh I did not notice any difference what do ever... Even tho a very thoroughly reaserched supplement I will not be buying again as I do not believe it is that important

Apr 20, 2013
Verified Buyer
No written review.
Apr 04, 2013

Good product at a good price, need to take 2 capsules instead of one tho

Jul 04, 2011
Verified Buyer

I usually take 2-3 of these (1-1.5g) prior to training with 200mg of caffeine. So far, I haven't really noticed anything significant, though I am a little more focused during my workout. It's supposed to act as a sort of stimulant, especially in conjunction with caffeine. I might try upping the dosage to 2-3g.

May 05, 2010

Take one every morning, helps with focus, clarity, and mood. Keep in mind that many protein powders also contain tyrosine aminos, but I still prefer the quality of these capusles. I notice that if I've taken too much tyrosine in the day my mood gets worse, but everyone is different.

Apr 28, 2010

Good product.

Mar 02, 2010

I use this product to boost my focus and concentration and it definitely helps! I've also noticed that I no longer have cold hands/feet. It turns out those were symptoms of a thyroid issue and as the thyroid uses tyrosine to manufacture different hormones it seems like the product helped to alleviate the problem. NOW has always been one of my favorite supplement manufacturers and this product is no exception. Great product for a great price!

Aug 27, 2009

This makes a difference in mood and possibly energy levels. I'm not under a lot of stress right now, but I do notice that I'm happier when I take it.

What's in NOW L-Tyrosine

120 Capsules
Serving Size 1 Capsule
Amount Per Serving
L-Tyrosine (Free-Form) 500 mg *
* Daily Value not established
Other Ingredients:
Gelatin (capsule), Magnesium Stearate (vegetable source), and Stearic Acid (vegetable source).
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nuts ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Directions For L-Tyrosine: Take 1 capsule 1 to 3 times daily, preferably between meals. 

Warnings: 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.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Learn more about L-Tyrosine.
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