Doctor's Best L-Tryptophan featuring TryptoPure™

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Doctor's Best L-Tryptophan featuring TryptoPure™ -- 500 mg - 90 Vegetarian Capsules

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Doctor's Best L-Tryptophan featuring TryptoPure™ -- 500 mg - 90 Vegetarian Capsules

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Supplement Facts
Serving Size: 1 Capsule
Servings per Container: 90
Amount Per Serving% Daily Value
Ajinomoto L-Tryptophan500 mg*
*Daily value not established.
Other Ingredients: Vegetable capsule, cellulose, magnesium stearate (vegetable source), silicon dioxide.

Doctor's Best L-Tryptophan featuring TryptoPure™ Description

  • Doctor's Best® Science-Based Nutrition™
  • USP Pharmaceutical Grade
  • Featuring Ajinomoto's TryptoPure™

L-tryptophan is an essential amino acids (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 United States Pharmacopeia (USP) standards.


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.
Free Of
Suitable for Vegetarians. Contains nothing other than listed ingredients.
These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Doctor's Best L-Tryptophan featuring TryptoPure™ -- 500 mg - 90 Vegetarian Capsules 4.7 5 9 20
Good product I like this product. I take it to help me sleep. It doesn't always work but it usually helps relax me. Sometimes I open up the capsules and pour the powder into my mouth for faster results. June 7, 2013
great product I've used this product for years and have had really good results. I don't have to use it every night, only when I have trouble sleeping. I never wake up drowsy, but come out of sleep naturally. May 30, 2012
the best for sleep this is the best product for sleep. Taken before you go to sleep, you can sleep like a first some have very vivid dreams, they do calm down after about a week, then the most needed sleep happens. July 8, 2011
Awful For some I don't doubt that this may work but for me it is terrible. It made my body ache and made me feel real scummy in general. Im not sure about the quality although I have tried other brands of tryptophan that didn't work but also didn't make my body ache or make me feel so scummy. Also, there are ingredients on the bottle in the "other ingredients" that aren't listed on this website. Had to return. June 25, 2009
Great for sleep This product works great..I have used it for the past two years whenever I have trouble sleeping. No lingering sleepiness in the morning either. May 22, 2008
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Frequently Bought Together:
Doctor's Best L-Tryptophan featuring TryptoPure™
Source Naturals GABA

Retail price together: $71.97

Vitacost price: $35.09

You Save: 51%

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