Doctor's Best L-Tryptophan

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Doctor's Best L-Tryptophan (90 caps)

Doctor’s Best L-Tryptophan with TryptoPure® promotes normal, restful sleep and healthy mood and behavior. L-tryptophan, an essential amino acid, is not synthesized by the body and must be obtained through dietary sources. Doctor’s Best L-Tryptophan contains TryptoPure®, a highly purified, pharmaceutical-grade L-tryptophan that meets the purity of both the Japanese Pharmacopeia (JP) and the United States Pharmacopeia (USP).

Key Benefits

  • Doctor’s Best L-Tryptophan with TryptoPure® helps promote normal restful sleep, healthy mood and behavior.
  • Helps promote healthy mood and behavior.
  • Helps promote normal, restful sleep.


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

Allergy Information: Non-GMO. Gluten Free. Soy Free. Vegetarian. Vegan.

Suggested Use

Take one (1) capsule daily, or as recommended by a nutritionally informed physician. For optimum absorption, take separately from protein-containing foods and dietary supplements containing protein or amino acids.

Precautions: Consult your healthcare provider before use if you are taking any prescription medications or if you have a medical condition.

These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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