Skip to content
CALL US (903) 887-8400
CALL US (903) 887-8400
Home About Search Blog Contact
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. 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 b

NOW - L-Tryptophan 500 mg 60 caps

$17.60 - $17.60
$17.60
$17.60 - $17.60
$17.60

L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating sleep, positive mood and immune function.*

As an essential amino acid, it is not synthesized by the body and must be obtained from the diet. 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. Consider taking these other NOW® products: Inositol and Magnesium

Available in 60 and 120 count bottles

Amount Per Serving: 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.
Vegetarian/Vegan Product.
Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially anti-depressant medications such as SSRI""s or MAOI""s), or have a medical condition.
May cause drowsiness.
Do Not Eat Freshness Packet. Keep in Bottle.
Store in a cool, dry place after opening. Please Recycle.
* This statement has not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.