---
product_id: 28325411
title: "Melatonin Prolonged Release - 3 mg Melatonin - Sleep Support Supplement - for Hormone Balance, Relaxation, Antioxidants & Immune System* - 180 Tablets"
brand: "douglas laboratories"
price: "€ 91.36"
currency: EUR
in_stock: true
reviews_count: 8
category: "Douglas Laboratories"
url: https://www.desertcart.nl/products/28325411-melatonin-prolonged-release-3-mg-melatonin-sleep-support-supplement-hormone
store_origin: NL
region: Netherlands
---

# 3 mg prolonged-release melatonin Supports natural sleep/wake cycle Antioxidant immune support Melatonin Prolonged Release - 3 mg Melatonin - Sleep Support Supplement - for Hormone Balance, Relaxation, Antioxidants & Immune System* - 180 Tablets

**Brand:** douglas laboratories
**Price:** € 91.36
**Availability:** ✅ In Stock

## Summary

> 🌙 Unlock your best night’s sleep—because tomorrow deserves your full power!

## Quick Answers

- **What is this?** Melatonin Prolonged Release - 3 mg Melatonin - Sleep Support Supplement - for Hormone Balance, Relaxation, Antioxidants & Immune System* - 180 Tablets by douglas laboratories
- **How much does it cost?** € 91.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/28325411-melatonin-prolonged-release-3-mg-melatonin-sleep-support-supplement-hormone)

## Best For

- douglas laboratories enthusiasts

## Why This Product

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

## Key Features

- • **Sustained Sleep Support:** 3 mg melatonin released gradually for all-night relaxation and deep sleep.
- • **Premium Quality Assurance:** GMP-certified, NSF-registered, and GMO-free for trusted, clean supplementation.
- • **Circadian Rhythm Regulator:** Helps maintain your natural sleep/wake cycle for consistent, restorative rest.
- • **Hormone & Cortisol Balance:** Formulated to promote healthy hormone levels and manage stress-related cortisol.
- • **Immune-Boosting Antioxidants:** Melatonin’s antioxidant power supports your immune defenses while you sleep.

## Overview

Douglas Laboratories Melatonin Prolonged Release delivers 3 mg of pharmaceutical-grade melatonin in a slow-release formula designed to support natural sleep cycles, hormone balance, and immune health. Manufactured under strict GMP and NSF standards, this supplement offers a scientifically backed, high-purity solution for improved sleep quality and overall wellness.

## Description

Douglas Laboratories Melatonin Prolonged Release provides support for restful sleep.* Each tablet contains 3 mg of the purest pharmaceutical-grade melatonin, which is meticulously crafted to release slowly, providing prolonged benefits throughout the night.*The importance of a restful night's sleep cannot be overstated, and Melatonin Prolonged Release. is your ally in achieving it.* Melatonin, a hormone naturally produced in the body, is essential for regulating our sleep/wake cycles. As we age or encounter stress, our natural production can wane, leading to sleep disturbances. By supplementing with Douglas Laboratories’ prolonged-release tablets, you provide your body with the melatonin it needs to encourage a relaxing night's sleep, helping you fall asleep and stay asleep, thus improving overall sleep quality.*Beyond sleep, melatonin serves as a powerful antioxidant, aiding your immune system.* The dual-action nature of this product offers not only restful relaxation but also hormone balance and immune support.* Our commitment to quality is unwavering; we employ state-of-the-art manufacturing practices that exceed GMP standards, ensuring that each tablet is GMO-free and of the highest purity.For over 60 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals and is recognized as a leader in the development of high quality, science-based, innovative nutritional supplements across 12 health functions that support healthy lifestyles.Douglas Laboratories is a GMP-compliant manufacturing facility that is third-party, NSF International registered and inspected for good manufacturing practices. An approved producer of NSF certified-for-sport products with an ISO-accredited internal quality laboratory, we guarantee that our supplements are free of banned substances.

Review: Best sleep ever. - My opinion 3 mg PR melatonin is the best I ever had.
Review: Effective sleep aid - Recommended by my naturopathic doctor; highly effective for regular use. Great for perimenopausal and menopausal women.

## Features

- Prolonged-Release Melatonin Supplement: 3 mg of melatonin provides sustained delivery for relaxation and restful sleep*
- Sleep/Wake Support: Sleep supplement helps regulate normal rhythms as it slowly breaks down and releases in the small intestine*
- Antioxidant Benefits: This sleep supplement helps protect the immune system thanks to melatonin's antioxidant properties*
- Cortisol Management: Formulated for relaxation, healthy hormone balance, and management of cortisol and neurotransmitters for optimal health*
- Healthier Living for Your Patients: Douglas Laboratories provides high quality, science-based nutritional supplements to support your patients' healthy lifestyles

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B003PQUE70 |
| Best Sellers Rank | #61,203 in Health & Household ( See Top 100 in Health & Household ) #636 in Herbal & Nutritional Sleep Supplements |
| Customer Reviews | 4.4 4.4 out of 5 stars (598) |
| Date First Available  | July 11, 2014 |
| Manufacturer  | Atrium - Douglas Laboratories |
| Product Dimensions  | 3.8 x 2.3 x 2.1 inches; 2.86 ounces |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Douglas Laboratories
- **Dosage Form:** Tablet
- **Item Form:** Tablet
- **Item Weight:** 2.86 ounces
- **Item dimensions L x W x H:** 3.8 x 2.3 x 2.1 inches
- **Number of Items:** 1
- **Package Information:** Bottle
- **Product Benefits:** Sleep Support
- **Unit Count:** 180 Count

## Images

![Melatonin Prolonged Release - 3 mg Melatonin - Sleep Support Supplement - for Hormone Balance, Relaxation, Antioxidants & Immune System* - 180 Tablets - Image 1](https://m.media-amazon.com/images/I/61NiA7k8Q3L.jpg)

## Available Options

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

## Questions & Answers

**Q: Why does it contain dicalcium phosphate?**
A: Douglas Laboratories tells us that the dicalcium phosphate is used in the tableting process to help compress the ingredients and add structural support to the product.

**Q: Anyone know if these are vegan? Their website doesn’t say.**
A: This is a pharmaceutical made melatonin.

**Q: What is the difference between the prolonged-release formulation and the controlled-release one?**
A: Douglas Laboratories Melatonin Prolonged Release contains 3 mg  while Melatonin Controlled Release contains 2 mg of high purity melatonin.  They both use a prolonged-release tablet, formulated to slowly breakdown and release in the small intestine.

**Q: Are companies in China providers of the raw ingredients which are then finished and manufactured in PA?**
A: Douglas Laboratories sources ingredients from all over the world, including China. Douglas Laboratories products are then manufactured in the USA.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best sleep ever.
*by S***V on November 9, 2025*

My opinion 3 mg PR melatonin is the best I ever had.

### ⭐⭐⭐⭐⭐ Effective sleep aid
*by N***E on June 10, 2025*

Recommended by my naturopathic doctor; highly effective for regular use. Great for perimenopausal and menopausal women.

### ⭐⭐⭐⭐⭐ One of the best melatonin supplements available for market
*by A***R on December 14, 2019*

I've been taking various different melatonin supplements off-and-on throughout my life, and I've come to learn that effectiveness varies greatly from manufacturer to manufacturer. You get what you pay for, and thankfully with these, you get a lot. A single dose of these will help you fall to sleep well within an hour, especially if you don't engage in anything too exciting or stay away from screens a bit. The actual sleep quality itself is fine. I don't believe the melatonin helps as much with the staying asleep as it does falling asleep, so for the purpose of the latter, it's a great product. Well worth trying if you're not finding any success with the cheaper or generic brands. The specific "prolonged release" formula as advertised does seem to place it above the rest.

## Frequently Bought Together

- Douglas Laboratories Melatonin Prolonged Release - 3 mg Melatonin - Sleep Support Supplement - For Hormone Balance, Relaxation, Antioxidants & Immune System* - 180 Tablets
- Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief, Sleep, Heart Health, Nerves, Muscles, and Metabolism* - with Magnesium Glycinate - 90 Capsules
- Douglas Laboratories Melatonin 1 mg. | Supports Sleep/Wake Cycles | 60 Tablets

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-20*