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Doctor's Best, Best L-Tryptophan, 500 mg, 90 Veggie Caps

By Doctor's Best

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$15.78 (46%)
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  • Product Code: DRB-00126
  • UPC Code: 753950001268
  • Package Quantity: 90 Veggie Caps
  • Dimensions: 2.4 x 2.4 x 4.3 in, 0.2 lbs (0.09 kg)
  • Important Note: Doctor's Best uses exclusively the Tryptopure brand of Tryptophan, manufactured by Ajinomoto of Japan.
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Product Overview

  • Science-Based Nutrition
  • Dietary Supplement
  • USP Pharmaceutical Grade
  • Featuring Ajinomoto's TryptoPure
  • Vegan
  • Non-GMO and Gluten Free
  • AjiPure Amino Acids

L-tryptophan is an essential amino acid (protein building block) in human nutrition. Essential amino acids are not synthesized by the body and must be obtained in the diet. The L-tryptophan in this product is manufactured and tested for purity according to the Japanese Pharmacopeia (JP) and the United States Pharmacopeia (USP) standards.

Suggested Use

Adult Use: Take 1 or 2 capsules daily, or as directed by a health practitioner. For optimum absorption, take separately from protein-containing foods and dietary supplements containing protein or amino acids.

Other Ingredients

Modified cellulose (vegetarian capsule), cellulose, magnesium stearate (vegetable source), silicon dioxide.

Contains nothing other than listed ingredients

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Supplement Facts
Serving Size: 1 capsule
Servings Per Container: 90 servings
  Amount per serving % Daily Value
Ajinomoto L-Tryptophan 500 mg
† Daily Value not established.

iHerb Customer Reviews

5 Stars
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1 Stars

Perfectly Pure

Posted by Reviewer1946200 on Jan 24, 2007

This is the exact pharmaceutical quality product as was available only by prescription after the "tryptophan scare," and MUCH less expensive.

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10 people found the following review helpful

Super Product!

Posted by Reviewer1139707 on Jul 06, 2008

After struggling for years with insomnia, I can't believe how well I sleep when I take this along with Melatonin. Now, I did read that Niacin and B-6 help the body assimilate the tryptophan, so I've been also taking one capsule of "True Calm". However, recently, I found that iHerb also carries this brand of tryptophan with the niacin and B-6 already included, so I am planning to try that.

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10 people found the following review helpful

Sleeping Better

Posted by Reviewer1689194 on Oct 17, 2007

Since I increased my intake of Tryptophan to two caps at night, I've been feeling noticeably better and more energetic during the day!

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9 people found the following review helpful

Better than sleeping pills.

Posted by Reviewer2176359 on Nov 27, 2007

Better than sleeping pills in helping me get to sleep. Don't leave me feeling groggy, even if I take them at 5 a.m. for another couple of hours sleep.

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9 people found the following review helpful

Sleep Improvement

Posted by Reviewer3183324 on Nov 25, 2007

At age 51, I have had trouble sleeping. I tried taking two of the L-Tryptophans and they worked like a charm. No hangover just solid sleep! Yehaa!

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7 people found the following review helpful

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