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L-Tryptophan Powder

NOW Foods

2 ounces



L-Tryptophan Powder product image
SKU: NOW-0263

L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet.* L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.* Every lot of NOW® L-Tryptophan is tested to be free of Peak E and microbial contamination.


  • Encourages Positive Mood*
  • Promotes Restful Sleep*

Suggested Use:

Take one or two 1/4 level teaspoons 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.



Serving Size: Two ½ Level Teaspoons (appx 1g)


Amount Per Serving

L-Tryptophan … 950mg*



Other Ingredients:  Cellulose.



Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

This product is Non-GMO, Vegan/ Vegetarian, Kosher, Dairy Free.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have a medical condition. May cause drowsiness. Do not use with alcoholic beverages or while operating heavy machinery. Keep out of reach of children.


Do not eat freshness packet enclosed.


Store in a cool, dry place after opening. Please Recycle.

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