---
product_id: 75934116
title: "NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams"
brand: "now foods"
price: "$43.70"
currency: USD
in_stock: true
reviews_count: 11
category: "Now Foods"
url: https://www.desertcart.us/products/75934116-now-foods-l-tryptophan-500mg-120-vcaps-120-grams
store_origin: US
region: United States of America
---

# Supports healthy sleep & melatonin production Non-GMO, allergen-free clean formula 500mg pure L-Tryptophan per capsule NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams

**Brand:** now foods
**Price:** $43.70
**Availability:** ✅ In Stock

## Summary

> 💡 Elevate your mood & sleep game — because you deserve to thrive!

## Quick Answers

- **What is this?** NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams by now foods
- **How much does it cost?** $43.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/75934116-now-foods-l-tryptophan-500mg-120-vcaps-120-grams)

## Best For

- now foods enthusiasts

## Why This Product

- Trusted now foods brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleep Like a Pro:** Enhance melatonin synthesis to unlock deep, restorative rest.
- • **Clean & Conscious:** Dairy, soy, nut, egg free + Non-GMO for mindful wellness.
- • **Mood Mastery in a Capsule:** Boost serotonin naturally for a positive, balanced mindset.
- • **Trusted Quality, Proven Results:** 4.5-star rating with thousands of happy users.
- • **120 Veg Capsules for Long-Term Support:** Sustain your wellness journey with a 4-month supply.

## Overview

NOW Foods L-Tryptophan 500mg delivers a potent, essential amino acid formula designed to support serotonin and melatonin production, promoting positive mood, restful sleep, and immune health. This clean, allergen-free, Non-GMO supplement comes in 120 vegetarian capsules, trusted by thousands for consistent, high-quality results.

## Description

NOW Foods L-Tryptophan 500mg, 120 Vcaps. 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. Supplement is dairy free, soy free, nut free, egg free, Non - GMO.

Review: quality product. - Clean trustable and quality product. been buying it for a while. works well. Jeff bezos loves your pesos. Buy your proudcts from your local stores. kaahe ko isko ameer bana rahe ho ..waise bhi kaafi ameer hai
Review: Huge improvement in mood and feeling of well being ! - Really helps with the depression/negative mood . This simple improvement in mood and feeling positive has great implications in day to to day life eventually leading to things overall looking upwards !

## Features

- NOW Foods L-Tryptophan 500mg, 120 Vcaps. 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. Supplement is dairy free, soy free, nut free, egg free, Non - GMO.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0019LWV56 |
| Age Range Description | Adult |
| Best Sellers Rank | #32,518 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #168 in Herbal & Nutritional Sleep Supplements |
| Brand | Now Foods |
| Colour | White |
| Container Type | Bottle |
| Customer Reviews | 4.5 out of 5 stars 4,660 Reviews |
| Diet Type | Vegetarian |
| Dosage Form | 2 Veg Capsules |
| Flavor | Unflavoured |
| Flavour | Unflavoured |
| Global Trade Identification Number | 00733739001672 |
| Item Dimensions | 6.9 x 6.9 x 12.1 Centimeters |
| Item Form | Capsule |
| Item Nype Name | Dietary Supplement |
| Item Weight | 0.12 Kilograms |
| Manufacturer | Now Foods |
| Manufacturer Part Number | 0167 |
| Material Features | Gluten Free |
| Model number | 0167 |
| Net Quantity | 120 Count |
| Number of Items | 1 |
| Packer Contact Information | Now Foods |
| Primary Supplement Type | L-TRYPTOPHAN |
| Product Benefits | positive mood support and relaxation health support |
| Special Ingredients | Tryptophan |
| UPC | 733739001672 |
| Unit Count | 120 Count |

## Product Details

- **Brand:** Now Foods
- **Diet Type:** Vegetarian
- **Flavour:** Unflavoured
- **Item Form:** Capsule
- **Item Weight:** 0.12 Kilograms
- **Item dimensions L x W x H:** 6.9 x 6.9 x 12.1 Centimeters
- **Net Quantity:** 120 Count
- **Primary Supplement Type:** L-TRYPTOPHAN
- **Product Benefits:** positive mood support and relaxation health support
- **Special Ingredients:** Tryptophan

## Images

![NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams - Image 1](https://m.media-amazon.com/images/I/71cs2OrNIJL.jpg)
![NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams - Image 2](https://m.media-amazon.com/images/I/71ONK4A0k1L.jpg)
![NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams - Image 3](https://m.media-amazon.com/images/I/61dZ5kGb28L.jpg)
![NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams - Image 4](https://m.media-amazon.com/images/I/81j8gGHfXCL.jpg)
![NOW Foods L-Tryptophan 500mg,120 Vcaps, 120 grams - Image 5](https://m.media-amazon.com/images/I/71AggOdc+BL.jpg)

## Questions & Answers

**Q: What is the difference between this product and the L -Tryptophan that was removed from store shelves years ago?**
A: I was diagnosed with EMS in 1989.  I was one of the lucky ones and fully recovered. There was no cure. The “treatment” was discontinued use of L-tryptophan, steroids and 2 yrs of PT for me. Someone said EMS was treated with L-tryptophan?  Ridiculous.  We were being told by physicians to double up our dosages BEFORE they knew that was the root cause. I was sent to every specialist because every system in the body was impacted. 
Big pharma may have upped their game on regulating their manufacturing standards. But Supplements like L-Tryptophan do not fall under big pharmaceutical. They are not regulated with the same standards. Yes, do your HW. And no, this was not part of some crazy Prozac conspiracy plan.

**Q: What's the difference with 5-HTP?**
A: 5-HTP is converted in the body from L-Trytophan (also, can be made from the seeds of a particular African plant). It can have more wide-ranging side-effects (beyond brain/mental issues), so be careful with it when taking directly. When taken with other herbs, effects can amplify, so be careful. Always check with your medical doctor before taking 5-HTP. 5-HTP gets converted to serotonin by the liver. 5-HTP is not sold over-the-counter in all countries of the world. L-Trytophan, as a naturally occurring amino acid,  is commonly viewed as the safer alternative.

**Q: How big are the capsules?  I bought the other brand on amazon and they are too big.I have a problem with my esophougus and it got stuck and made be sick for a day. Thanks**
A: I have trouble swallowing pills, but there's a positive with this when it comes to ANY amino acids: They are best taken by opening the capsule into 1-2 oz of water and swishing in your mouth before swallowing. It allows them to absorb better AND work faster.

**Q: is the tryptophane from China??**
A: According to a message I got back from NOW:"The tryptophan is produced by fermentation of non-GMO corn in China; then is granulated, encapsulated, and bottled in the USA."

## Customer Reviews

### ⭐⭐⭐⭐⭐ quality product.
*by S***N on 22 February 2026*

Clean trustable and quality product. been buying it for a while. works well. Jeff bezos loves your pesos. Buy your proudcts from your local stores. kaahe ko isko ameer bana rahe ho ..waise bhi kaafi ameer hai

### ⭐⭐⭐⭐⭐ Huge improvement in mood and feeling of well being !
*by S***P on 19 December 2021*

Really helps with the depression/negative mood . This simple improvement in mood and feeling positive has great implications in day to to day life eventually leading to things overall looking upwards !

### ⭐⭐⭐⭐ Quality was satisfactory
*by P***T on 14 October 2020*

I felt the Quality was good enough / satisfactory. but in terms of pricing, I am not aware of any place where it is cheaper. but for me personally, it was worth the buy!

## Frequently Bought Together

- NOW Foods Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation*, 120 Veg Capsules
- NOW Foods Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120 Capsules
- NOW Foods Supplements, 5-HTP (5-hydroxytryptophan) 100 mg, Neurotransmitter Support*, 120 Veg Capsules

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-06*