An essential amino acid that is not synthesized by the body and must be obtained by diet or supplementation.
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 tested to be free of Peak E and microbial contamination
Take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician
Packaged in the USA by a family owned and operated company since 1968.
Product Specifications
Product Dimensions: 2.7 x 2.7 x 4.75 inches; 4.23 ounces
Item Weight: 4.2 ounces
Department: Health and Beauty>Health and Wellness
ASIN: B0019LWV56
Item model number: 0167
Customer Reviews: 4.5 out of 5 stars 5,235Reviews
Best Sellers Rank: #8,214 in Health & Household (See Top 100 in Health & Household) #77 in Herbal & Nutritional Sleep Supplements #86 in Sleep & Snoring Aids #1,000 in Sales & Deals
Is Discontinued By Manufacturer: No
Date First Available: October 2, 2001
Item dimensions L x W x H: 2.7 x 2.7 x 4.75 inches
Diet Type: Vegan
Product Benefits: Sleep Support, Stress Relief
Age Range (Description): Adult
Package Information: Bottle
Number of Items: 1
Servings per Container: 60
Dosage Form: Capsule
Color: Cream
Allergen Information: Gluten Free
Material Feature: Vegetarian
Model Name: L-Tryptophan 500 mg
UPC: 733739001672
Manufacturer: NOW Sports - Nutrition and Wellness
Global Trade Identification Number: 00733739001672
Product Information
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.