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Doctor's Best

Best L-Tryptophan

Swanson $17.99
Retail $33.99 Save 47%
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500 mg 90 Veg Caps
  • Science-based nutrition

  • Promotes mood and relaxation

  • Veggie capsules

Best L-Tryptophan by Doctor's Best features Ajinomoto TryptoPure tryptophan. This essential amino acid is able to cross the blood-brain barrier. L-tryptophan is altered by enzymes to first form the intermediate amino acid 5-HTP and then serotonin. It is also the metabolic precursor to melatonin and to the B vitamin niacin. Supplementing the diet with Doctor's Best L-Tryptophan can improve sleep and enhance mood, and may also be beneficial in reducing carbohydrate cravings.

Product Label

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.

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

Suggested 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.

Suitable for vegetarians

Contains Nothing Other Than Listed Ingredients

Terms and Ingredient Definitions

Doctor's Best Best L-Tryptophan Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Best L-Tryptophan 5 5 1 1
Sleep like a baby! I find this a great value for Tryptophan! I just can't sleep without it. Before I tried this I would wake every night after sleeping a few hours, and lay there for hours before I could go back to sleep. I take two nightly after dinner, at least an hour before bed. Under stressful situations when I might have even more trouble sleeping I will take another right before bed. I sleep like a baby! Thank goodness we can get Tryptophan again! March 16, 2012
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