---
product_id: 3703635
title: "NOW Foods Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation*, 120 Veg Capsules"
brand: "now foods"
price: "13511 Ft"
currency: HUF
in_stock: true
reviews_count: 9
category: "Now Foods"
url: https://www.desertcart.hu/products/3703635-now-foods-supplements-l-tryptophan-500-mg-encourages-positive-mood
store_origin: HU
region: Hungary
---

# 500 mg pure L-Tryptophan dose Supports restful sleep cycles Serotonin & melatonin production boost NOW Foods Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation*, 120 Veg Capsules

**Brand:** now foods
**Price:** 13511 Ft
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your mood and master your nights with NOW L-Tryptophan!

## Quick Answers

- **What is this?** NOW Foods Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation*, 120 Veg Capsules by now foods
- **How much does it cost?** 13511 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/3703635-now-foods-supplements-l-tryptophan-500-mg-encourages-positive-mood)

## 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 CEO:** Optimized formula to support deep, restorative sleep for peak next-day performance*
- • **Clean & Trusted Quality:** Every batch tested free of Peak E & microbial contaminants for pure peace of mind
- • **Vegan & Allergy-Friendly:** 100% vegetarian capsules, free from dairy, soy, nuts, and GMOs—fit for any lifestyle
- • **Mood Mastery in a Capsule:** Clinically backed 500 mg dose to elevate serotonin and promote positivity*
- • **Made in the USA Since 1968:** Family-owned legacy ensuring premium quality and transparency you can trust

## Overview

NOW Foods L-Tryptophan 500 mg delivers a potent, vegan-friendly amino acid essential for serotonin and melatonin synthesis, supporting positive mood, restful sleep, and immune health. Each batch undergoes rigorous testing to ensure purity and safety, packaged by a trusted family-owned US company since 1968. Ideal for professionals seeking natural, clean supplementation to optimize mental wellness and nightly recovery.

## Description

Encourages Positive Mood* Promotes Restful Sleep* 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. Natural color variation may occur in this product.

Review: Quality - this product is AMAZING-I have purchase different teas and sleep tablets to help me fall asleep and stay asleep well one night the family was over and because of the laughing and playing and recalling old memories I did not take anything and because it was late pass 10 pm I could not drink my tea so the only thing left was the Tryptophan and wow I slept all night and I did not get up until 7 and I felt so good that I was able to get on with my usual activity -I recommend these pills for a good night sleep with few pills
Review: Eat your hummus, tryptophan and inositol. Because panic attacks stink. - I used to have panic attacks which I controlled, first with Ativan before switching to inositol (a vitamin that is required for the synthesis of serotonin). Eventually, the panic attacks seemed to go away and I stopped the inositol too. That worked for a good long while. But recently, my doctor was forced to take me off my medications for a short period. During this time, my panic attacks came back although in very mild form. Basically, I would find myself tensing up and breathing as if i'd exercised. It was simple to control them simply by lying down and relaxing. Still, I'm stubborn. I tried to supplement again with the inositol but it seemed to have no effect. After a few days, it almost seemed as if the problem might be getting worse. So a little reading: Tryptophan is the precursor amino acid that gets converted to serotonin. The primary organs that produce serotonin are 1) the gut and 2) the brain. In fact, the gut produces more serotonin than the brain. Almost all protein sources have goodly amounts of tryptophan with turkey at the top of this list. However, getting the tryptophan to the brain is a problem. There is a special transporter protein which I dub the train to the brain. The problem is tryptophan is the slowest to get on board. If you eat a high protein meal (turkey), all the other amino acids from the meat crowd on board faster and tryph never makes it on board. In addition, tryptophan absorption is increased if the body releases insulin. So the best way to absorb tryptophan is to eat a vegan meal with some vegetable that is naturally high in tryph (chickpeas or these capsules) along with some carbs. The other strategy if you eat meat is to crank the levels of tryph high, really really high. For this to work, you probably want to buy tryph in bulk and spoon in over your meat until you get a mound equal in size. And yes, supplementing does work. They ran one clinical trial with the vegan meal strategy and documented improvement in symptoms. After about 3 small vegan meals with crackers plus some inositol, my panic attacks subsided. It didn't work if I just did one or the other. Then I just tried supplementing with tryph plus inositol along with my nighttime snack and they haven't come back. After a while, my doctor put me back on my meds, but I keep the tryph because it's clear I'm not getting much into the brain through diet alone.

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0019LWV56 |
| ASIN  | B0019LWV56 |
| Age Range Description | Adult |
| Allergen Information | Dairy Free, Egg Free, Non-GMO, Nut Free, Soy Free |
| Best Sellers Rank | #9,194 in Health & Household ( See Top 100 in Health & Household ) #80 in Sleep & Snoring Aids #101 in Herbal & Nutritional Sleep Supplements #1,011 in Sales & Deals |
| Brand Name | NOW Foods |
| Color | Cream |
| Container Type | Bottle |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,592) |
| Date First Available  | October 2, 2001 |
| Department  | Health and Beauty>Health and Wellness |
| Diet Type | Halal, Kosher, Vegan, Vegetarian |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00733739001672 |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 2.7 x 2.7 x 4.75 inches |
| Item Form | Capsule |
| Item Weight | 0.12 Kilograms |
| Item model number  | 0167 |
| Manufacturer | NOW |
| Manufacturer  | NOW |
| Manufacturer Part Number | 0167 |
| Material Features | Vegetarian |
| Model Name | L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation* |
| Model Number | 0167 |
| Number of Items | 1 |
| Primary Supplement Type | multivitamin |
| Product Benefits | Sleep Support, Stress Relief |
| Product Dimensions  | 2.7 x 2.7 x 4.75 inches; 4.23 ounces |
| Total Servings Per Container | 60 |
| UPC | 733739001672 |
| Unit Count | 120 Count |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** NOW Foods
- **Diet Type:** Halal, Kosher, Vegan, Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.12 Kilograms
- **Item dimensions L x W x H:** 2.7 x 2.7 x 4.75 inches
- **Primary Supplement Type:** multivitamin
- **Product Benefits:** Sleep Support, Stress Relief
- **Unit Count:** 120 Count

## Images

![NOW Foods Supplements, L-Tryptophan 500 mg, Encourages Positive Mood*, Supports Relaxation*, 120 Veg Capsules - Image 1](https://m.media-amazon.com/images/I/71cs2OrNIJL.jpg)

## Available Options

This product comes in different **Size** options.

## 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
*by P***N on November 28, 2025*

this product is AMAZING-I have purchase different teas and sleep tablets to help me fall asleep and stay asleep well one night the family was over and because of the laughing and playing and recalling old memories I did not take anything and because it was late pass 10 pm I could not drink my tea so the only thing left was the Tryptophan and wow I slept all night and I did not get up until 7 and I felt so good that I was able to get on with my usual activity -I recommend these pills for a good night sleep with few pills

### ⭐⭐⭐⭐⭐ Eat your hummus, tryptophan and inositol. Because panic attacks stink.
*by E***T on June 6, 2018*

I used to have panic attacks which I controlled, first with Ativan before switching to inositol (a vitamin that is required for the synthesis of serotonin). Eventually, the panic attacks seemed to go away and I stopped the inositol too. That worked for a good long while. But recently, my doctor was forced to take me off my medications for a short period. During this time, my panic attacks came back although in very mild form. Basically, I would find myself tensing up and breathing as if i'd exercised. It was simple to control them simply by lying down and relaxing. Still, I'm stubborn. I tried to supplement again with the inositol but it seemed to have no effect. After a few days, it almost seemed as if the problem might be getting worse. So a little reading: Tryptophan is the precursor amino acid that gets converted to serotonin. The primary organs that produce serotonin are 1) the gut and 2) the brain. In fact, the gut produces more serotonin than the brain. Almost all protein sources have goodly amounts of tryptophan with turkey at the top of this list. However, getting the tryptophan to the brain is a problem. There is a special transporter protein which I dub the train to the brain. The problem is tryptophan is the slowest to get on board. If you eat a high protein meal (turkey), all the other amino acids from the meat crowd on board faster and tryph never makes it on board. In addition, tryptophan absorption is increased if the body releases insulin. So the best way to absorb tryptophan is to eat a vegan meal with some vegetable that is naturally high in tryph (chickpeas or these capsules) along with some carbs. The other strategy if you eat meat is to crank the levels of tryph high, really really high. For this to work, you probably want to buy tryph in bulk and spoon in over your meat until you get a mound equal in size. And yes, supplementing does work. They ran one clinical trial with the vegan meal strategy and documented improvement in symptoms. After about 3 small vegan meals with crackers plus some inositol, my panic attacks subsided. It didn't work if I just did one or the other. Then I just tried supplementing with tryph plus inositol along with my nighttime snack and they haven't come back. After a while, my doctor put me back on my meds, but I keep the tryph because it's clear I'm not getting much into the brain through diet alone.

### ⭐⭐⭐⭐⭐ Great brand with quality supplements
*by S***M on January 24, 2026*

Love almost everything from Now Foods and this item was no exception. I highly recommend this brand.

## 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 Hungary*
*Store origin: HU*
*Last updated: 2026-03-16*