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Doctor's Best, Best L-Tyrosine, 500 mg, 120 Veggie Caps

zł33.38 zł33.38 (Saved zł28.85)

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Doctor's Best, Best L-Tyrosine, 500 mg, 120 Veggie Caps

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zł0.28/Veggie Caps
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Doctor's Best, Best L-Tyrosine, 500 mg, 120 Veggie Caps

In Stock
  • Expiration Date: August 2019
  • Shipping Weight:
    0.14 kg
    Switch to Imperial units
  • Product Code: DRB-00316
  • UPC Code: 753950003163
  • Package Quantity: 120 Veggie Caps
  • Dimensions:
    6.1 x 6.1 x 11.2 cm , 0.11 kg
    Switch to Imperial units

Product Rank:

#7 in L Tyrosine >
Frequently Purchased Together
Product Overview


  • Ortho Science-Based Nutrition
  • Dietary Supplement
  • Brain Transmitter Support
  • Non-GMO
  • Gluten Free

Tyrosine is conditionally essential amino acid that is a precursor to the catecholamine transmitters dopamine, epinephrine, and norepinephrine. These are vital messengers for the brain and the body's other nerve networks. The thyroid gland also needs tyrosine to make the vital hormone thyroxine.

  • Precursor for the nerve messengers dopamine, norepinephrine, and epinephrine (adrenaline)
  • Precursor for thyroxine production by the thyroid gland

Suggested Use

Adult use: Take 1 capsule daily between meals, or more, as recommended by a nutritionally informed physician.

Other Ingredients

Modified cellulose (vegetarian capsule).


Store in a cool dry place.


While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 120 Servings
  Amount Per Serving % Daily Value
Tyrosine (L-Tyrosine) 500 mg
† Daily Value not established.
iHerb Customer Reviews

Great product

Posted by iHerb Customer on December 11 2017 | Verified Purchase

I got this out because it is one of the few that has no added toxic magnesium stearate. Very good!

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Less potent than other brands

Posted by iHerb Customer on August 17 2017 | Verified Purchase

I have tried Dr. Best after taking other brand and I found it far less potent. Two starts at most.

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This is what do you need

Posted by iHerb Customer on July 16 2017 | Verified Purchase

Very good amino acid.

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Great energy

Posted by iHerb Customer on July 7 2017 | Verified Purchase

Boost my energy and social skills. ; very nice.

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hypoactive thyroid

Posted by iHerb Customer on June 16 2016 | Verified Purchase

I have hypoactive thyroid. Taking every day Doctor's Best L-Tyrosine and additionally selenium . It helps me feel better, no so tired

Thanks for your feedback!