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Best By: April 2025
- Date First Available: August 2009
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Shipping Weight:
0.25 lb
- Product Code: NOW-00169
- UPC Code: 733739001696
- Package Quantity: 60 Count
- Dimensions: 2.4 x 2.4 x 4.4 in, 0.25 lb
Frequently purchased together




Description
- Supports Relaxation
- Encourages Positive Mood
- Promotes Restful Sleep
- Non-GMO
- A Dietary Supplement
- Vegetarian/Vegan
- Kosher
- Amino Acids
- Family Owned Since 1968
- GMP Quality Assured
Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. 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 combination.
NOW® Double Strength L-Tryptophan has twice the L-tryptophan (1000 mg per tablet) as in our regular strength product (500 mg per capsule).
Suggested use
Take 1 tablet 1 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.
Other ingredients
Croscarmellose sodium, hydroxypropyl cellulose, stearic acid (vegetable source), magnesium stearate (vegetable source), vegetarian coating and silicon dioxide.
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.
Warnings
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.
Natural color variation may occur in this product.
Store in a cool, dry place after opening.
Disclaimer
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
Supplement Facts | ||
Serving Size: 1 Tablet | ||
Amount Per Serving | % Daily Value | |
L-Tryptophan (Free-Form) | 1 g (1,000 mg) | * |
*Daily Value not established. |