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Now Foods, L-Tyrosine, 500 mg, 120 Capsules

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In Stock
  • Expiration Date: Jan 2019
  • Shipping Weight: 0.3 lbs (0.14 kg)
  • Product Code: NOW-00162
  • UPC Code: 733739001627
  • Package Quantity: 120 Capsules
  • Dimensions: 4.4 x 2.4 x 2.4 in, 0.25 lbs (0.11 kg)
Product Overview


  • Neurotransmitter Support
  • Pharmaceutical Grade (USP)
  • Supports Mental Alertness
  • Healthy Glandular Function
  • GMP-Quality Assured
  • A Dietary Supplement

L-Tyrosine is a non-essential amino acid that plays an important role in the production of neurotransmitters dopamine and norepinephrine. In addition, because L-Tyrosine is necessary for the synthesis of thyroid hormone and epinephrine (adrenaline), L-Tyrosine supports healthy glandular function and stress response.

Suggested Use

As a dietary supplement, take 1 capsule 1 to 3 times daily, preferably between meals. Consider taking this product in combination with NOW L-Phenylalanine and Acetyl L-Carnitine.

Other Ingredients

Gelatin (capsule), magnesium stearate (vegetable source) and stearic acid (vegetable source).

Contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.

The L-Tyrosine used in this product is Pharmaceutical Grade (USP).


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.

Store in a cool, dry place.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving % Daily Value
L-Tyrosine 500 mg *
* Daily Value not established.
iHerb Customer Reviews
Excellent for Depression
I've been taking L-Tyrosine and 5-HTP for depression and anxiety for about three weeks now. The results have been absolutely amazing. This works *far* better than any prescription anti-depressant SSRI I've been prescribed. Not only has my depression and anxiety dissipated, I actually feel energetic and alive! I read about these in Dr. Priscilla Slagle's book "The Way Up From Down" and also in Julia Ross's "The Mood Cure". I've been following Slagle's basic program which involves a very high-quality Multi Vitamin Mineral (M.V.M.), a high-quality Co-Enzyme B Complex that contains the proper form of B6 (P-5-P), and an extra 50mg of B6 (Pyridoxal-5-Phosphate / P-5-P) with each dose of L-Tyrosine or 5-HTP. I also take Vitamin C. Here's what I take: L-Tyrosine 1500mg + P-5-P 50mg on an empty stomach upon first waking up. I wait an hour before breakfast so it absorbs properly. M.V.M., B-Complex, Vitamin C 1-2000mg with breakfast L-Tyrosine 1500mg + P-5-P 50mg mid-afternoon on an empty stomach. M.V.M., B-Complex, Vitamin C 1-2000mg with dinner 5-HTP 100-150mg + P-5-P 50mg before bed on an empty stomach (makes me sleepy) The 5-HTP increases serotonin, and the L-Tyrosine increases dopamine and norepinephrine. So unlike a typical SSRI like Prozac that only increases serotonin, this increases these three neurotransmitters that regulate mood. Highly recommended if you're suffering from depression/anxiety and nothing you've tried so far seems to completely work.
Dec 13, 2013

Not Bad

Posted by 5334723888520109150 on Dec 22, 2016

I've happy with these capsules. The only thing keeping me from giving 5 stars is I just realised it says gelatin on the ingredients and I prefer vegetarian capsules wherever possible. Otherwise seems to be a decent product.

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Brought my moody teenager back!!!

Posted by 5386981317895263463 on Dec 13, 2016

My 14 year old daughter has been having issues with feelings of sadness, and lack of joy since she started her period. The feelings began to not only be once a month, but started to last longer stretches of time. I spent quite a bit of time researching supplements for her (I also work in functional medicine so I have a doctor to ask advice) as I DO NOT want a mental health diagnosis on her record, and I don't want her to struggle either. I think she just needed a bit of support with all the changes going on in her body, and she's a teenager, and doesn't eat as well as I would like! I found this combo to work REALLY fantastically: TMG, 5-HTP (Now Foods), & L-Tyrosine (Now Foods) and she is smiling, she is not locked in her room all the time, she is out and engaged in the family and I feel like I've gotten my baby back! She really did need some support. I do also have her on a whole food vitamin from Standard Process, a good probiotic from Xymogen, and she takes Maca (now foods) to help with her cycles.

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So far, GOOD

Posted by Reviewer1157623 on Dec 12, 2016

I take one first thing in the morning and find they work in keeping me alert and focused. I've tried another brand that weren't as effective as these ones but I still always say different strokes for different folks. You have to find what works for you. I love NOW brand for most of what i buy here

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This product is very good! I am gonna order for all my life!!

Posted by 4802103614189279084 on Dec 07, 2016

I am 26 years old and suffer from low thyroid. Before taking this product i was without energy all the time, bad concentration through my studies, easily losing my motivation, forgetting things, getting super tired at my work , having a super high heart rate and of course i was freezing desperately or sweating for no reason in a second, or felling even a bit of dizziness. This product is helping through my studies and gives me the energy I need. And the best thing is that I dont feel so hungry anymore like I did before. I am taking L-Tyrosine with the complex B vit +C, because it helps absorb better. And I am not taking any other pills for my thyroid cause i don´t need them and I dont like them!! Amazing, just cannot belive i found a good product which is natural and finally helps my motivation, my thyroid and my mind!!! Life is great again!!!!! I definitely recommend this product!!

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Great tyrosin

Posted by Reviewer1911274 on Dec 01, 2016

I have tried many tyrosin. This one is just as great as the others.

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