- USP Pharmaceutical Grade
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 United States Pharmacopeia (USP) standards.*
Serving Size: 1 capsule
Servings per container 90 servings
| Each Serving Contains | %DV |
| L-tryptophan 500 mg | ** |
** Daily Value (DV) Not Established
Other Ingredients: veggie capsule.
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.
Distributed by: Doctor's Best, Inc. 1120 Calle Cordillera, Suite 101, San Clemente, CA 92673.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
