---
product_id: 11002156
title: "L-Tryptophan 500 mg, Sleep, 90 Capsules"
brand: "life extension"
price: "422 kr"
currency: DKK
in_stock: true
category: "Life Extension"
url: https://www.desertcart.dk/products/11002156-l-tryptophan-500-mg-sleep-90-capsules
store_origin: DK
region: Denmark
---

# Supports restful, restorative sleep Non-GMO, gluten-free, vegetarian capsules 500 mg pure L-Tryptophan per capsule L-Tryptophan 500 mg, Sleep, 90 Capsules

**Brand:** life extension
**Price:** 422 kr
**Availability:** ✅ In Stock

## Summary

> 🌙 Elevate your nights, empower your days with Life Extension L-Tryptophan!

## Quick Answers

- **What is this?** L-Tryptophan 500 mg, Sleep, 90 Capsules by life extension
- **How much does it cost?** 422 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/11002156-l-tryptophan-500-mg-sleep-90-capsules)

## Best For

- life extension enthusiasts

## Why This Product

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

## Key Features

- • **Sleep Like a Pro:** Encourages deep, restorative sleep to power your busy days
- • **Stress? Handled.:** Supports your body's natural stress response for balanced wellbeing
- • **Clean, Trusted Quality:** Non-GMO, gluten-free, USA-made with expert formulation and verified purity
- • **Feel Full, Feel Focused:** Promotes satiety to help manage cravings and maintain energy
- • **Boost Your Serotonin Naturally:** 500 mg L-Tryptophan to elevate mood and promote calm

## Overview

Life Extension L-Tryptophan delivers 500 mg of high-quality, non-GMO, gluten-free amino acid per capsule to naturally support serotonin production, promoting restful sleep, balanced mood, and healthy stress response. Packaged in 90 vegetarian capsules, this USA-made supplement is designed for professionals seeking scientifically backed, clean nutrition to optimize mental wellness and nightly recovery.

## Description

L-Tryptophan is a novel formula for healthy sleep and mood. It contains 500 mg of L-tryptophan to encourage healthy serotonin levels and support restful sleep and a healthy mood. It also helps modulate your body’s natural stress response and promotes satiety. L-Tryptophan contains 90 vegetarian capsules, enough for a 1- to 3-month supply. This gluten-free formula is made with non-GMO ingredients.

## Features

- Support your serotonin levels—Serotonin is a neurotransmitter that is involved in restful sleep and positive mood. Your body needs adequate levels of the amino acid tryptophan to make it.
- Get some shuteye—Modern lifestyles make it hard to get enough rest. L-Tryptophan encourages serotonin production, which in turn promotes restful, restorative sleep.
- Mood & satiety—Tryptophan promotes healthy mood as well as satiety, the sensation of being full. Speaking of mood: tryptophan encourages your body’s healthy response to stress.
- Science matters – Expert formulators design our supplement formulas, and a Certificate of Analysis is available for every Life Extension product.
- Quality ingredients – The majority of our products are non-GMO, gluten-free and manufactured in the USA with internationally sourced ingredient

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CC1S2IC |
| ASIN  | B00CC1S2IC |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #49,380 in Health & Household ( See Top 100 in Health & Household ) #48 in 5-HTP Nutritional Supplements #2,722 in Sales & Deals |
| Brand Name | Life Extension |
| Color | Off White |
| Container Type | Bottle |
| Customer Reviews | 4.5 4.5 out of 5 stars (264) |
| Date First Available  | April 12, 2013 |
| Diet Type | Vegetarian |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00737870172291 |
| Item Dimensions | 2.5 x 2.5 x 4 inches |
| Item Form | Capsule |
| Item Highlight | Encourages Healthy Serotonin Levels & Promotes Sleep, Mood, Stress Response & Satiety, Gluten-Free, Non-GMO & Vegetarian |
| Item Nype Name | L-Tryptophan Supplement |
| Item Weight | 3.68 ounces |
| Item model number  | 01722 |
| Manufacturer | Life Extension |
| Manufacturer  | Life Extension |
| Manufacturer Part Number | 01722 |
| Material Features | GMO Free |
| Material Type Free | Gluten Free |
| Model Name | L-Tryptophan |
| Model Number | 01722 |
| Number of Items | 1 |
| Primary Supplement Type | L-Tryptophan |
| Product Benefits | Helps modulate your body’s natural stress response, Promotes satiety, Supports healthy sleep & mood |
| Product Dimensions  | 2.5 x 2.5 x 4 inches; 3.68 ounces |
| Recommended Uses For Product | Sleep, Mood |
| Special Ingredients | L-Tryptophan |
| Specific Uses For Product | Mood, Sleep |
| Total Servings Per Container | 90 |
| UPC | 737870172291 |
| Unit Count | 90 Count |

## Product Details

- **Brand:** Life Extension
- **Diet Type:** Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 3.68 ounces
- **Item dimensions L x W x H:** 2.5 x 2.5 x 4 inches
- **Primary Supplement Type:** L-Tryptophan
- **Special Ingredients:** L-Tryptophan
- **Unit Count:** 90 Count

## Images

![L-Tryptophan 500 mg, Sleep, 90 Capsules - Image 1](https://m.media-amazon.com/images/I/71gBpCwmjtL.jpg)

## Questions & Answers

**Q: What is L-tryptophan?**
A: The essential amino acid L-tryptophan acts as a precursor of serotonin, and your body needs L-tryptophan to maintain healthy serotonin levels.

**Q: How do I use L-tryptophan?**
A: Our premium-quality L-tryptophan formula helps maintain healthy tryptophan levels in the body and supports healthy sleep and mood, a healthy stress response and more.

**Q: When is the best time to take L-tryptophan?**
A: This L-tryptophan formula should be taken one to three times daily on an empty stomach, or as recommended by a healthcare practitioner.

## Frequently Bought Together

- Life Extension L-Tryptophan, 500 mg, Encourages Healthy Serotonin Levels and Promotes Healthy Sleep, Mood, Stress Response & Satiety, Gluten-Free, Non-GMO, Vegetarian, 90 Capsules
- Life Extension Neuro-Mag Magnesium L-Threonate, Magnesium L-threonate, Memory Health, Quick Thinking, Cognitive Health Support, Vegetarian, Non-GMO, 90 Vegetarian Capsules
- Life Extension L-Theanine, 100 mg, 60 Vegetarian Capsules — Supports a Calming & Mood Enhancing Effect, Amino Acid Derived From Tea - Gluten-Free, Non-GMO

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-10-23*