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Home  /  L-Tryptophan 500 mg. by NOW Foods

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  by NOW Foods
NOW Foods L-Tryptophan 500 mg.
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L-Tryptophan 500 mg

Supports Relaxation

  • Premium Grade

  • Encourages Positive Mood

  • Promotes Restful Sleep*

  • A Dietary Supplement

  • Vegetarian/Vegan



L-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body anbd 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.

Suggested Usage

As a dietary supplement, take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.


Serving Size:
2 Veg Capsules
Servings Per Container:
 30 / 60
  Amount Per Serving

% Daily


L-Tryptophan (Free-Form) 1 g (1,000 mg) *
Other Ingredients:

Cellulose (capsule), Cellulose Powder and Stearic Acid (vegetable source).

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.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs or 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. Keep in Bottle.

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


L-Tryptophan 500 mg. Reviews

60 Vegi Capsules
$21.99 $10.95
L-Tryptophan 500 mg., 60 Vegi Capsules (Sold Out) 
120 Vegi Capsules
$39.99 $19.95
L-Tryptophan 500 mg., 120 Vegi Capsules (In Stock) 
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L-Tryptophan 500 mg. Nutrition Facts

Nutrition Fact not available.
Please try selecting different size / flavor.

L-Tryptophan 500 mg. Sizes and Flavors (60 Vegi Capsules)

L-Tryptophan 500 mg., 60 Vegi Capsules 733739001665

L-Tryptophan 500 mg., 60 Vegi Capsules 733739001665

Brand: NOW Foods

Size / Content: 60 Vegi Capsules

GTIN: 00733739001665

UPC: 733739001665

Weight: 0.15 pound

L-Tryptophan 500 mg. Sizes and Flavors (120 Vegi Capsules)

L-Tryptophan 500 mg., 120 Vegi Capsules 733739001672

L-Tryptophan 500 mg., 120 Vegi Capsules 733739001672

Brand: NOW Foods


Size / Content: 120 Vegi Capsules

GTIN: 00733739001672

UPC: 733739001672

Weight: 0.3 pound

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