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L-Tryptophan 500 mg

NOWUpdated April 2026

Product Information

Brand
NOW
Form
Capsule
Servings Per Container
30
UPC
7 33739 00166 5
Product Type
Amino acid/Protein
DSLD Entry Date
2016-01-25

Target Groups

VeganVegetarianAdult (18 - 50 Years)Gluten FreeDairy Free

All Ingredients

IngredientAmount% DV
L-Tryptophan1 Gram(s)

† Daily Value not established.

Label Statements

General Statements: All Other Content

~ Encourages Positive Mood* ~ Promotes Restful Sleep*

Seals/Symbols

Non-GMO

FDA Statement of Identity

A Dietary Supplement

Formulation re: Vegetarian/Vegan

Vegetarian/Vegan

General Statements: All Other Content

Amino Acids

General Statements: All Other Content

Family owned since 1968.

Formulation re: Does NOT Contain

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Precautions re: Allergies

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.

Precautions re: All Other

Do Not Eat Freshness Packet. Keep in Bottle.

General Statements: All Other Content

Natural color variation may occur in this product.

Storage

Store in a cool, dry place after opening.

General Statements: All Other Content

Please Recycle.

Seals/Symbols

GMP QUALITY ASSURED

Suggested/Recommended/Usage/Directions

Suggested Usage: Take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.

General Statements: All Other Content

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.*

Formulation re: Does NOT Contain

Every lot of NOW L-Tryptophan is tested to be free of Peak E and microbial contamination.

Precautions re: All Other

May cause drowsiness. Do not use with alcoholic beverages or while operating heavy machinery.

Precautions re: Children

Keep out of reach of children.

Brand IP Statement(s) re: (c), (TM), (SM)

CAPSULE SIZE

General Statements: All Other Content

Supports Relaxation*

FDA Disclaimer Statement

*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.

Precautions re: All Other

Caution: For adults only.

Precautions re: Pregnant or Nursing or Prescription Medications

Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have a medical condition.

General: Product/Version Code

CODE 0166 V4

Supplement Facts Panel

Supplement Facts
Serving Size 1 Veg Capsule(s)
Servings Per Container 30
Amount Per Serving% Daily Value*
L-Tryptophan
1 Gram(s)

* Percent Daily Values are based on a 2,000 calorie diet.

† Daily Value not established.

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