---
product_id: 259907138
title: "Source Naturals L-Phenylalanine, 500mg, 50 tablets"
brand: "source naturals"
price: "€ 35.69"
currency: EUR
in_stock: true
category: "Source Naturals"
url: https://www.desertcart.fr/products/259907138-source-naturals-l-phenylalanine-500mg-50-tablets
store_origin: FR
region: France
---

# precursor to key neurotransmitters 500mg pure dose Made in USA quality Source Naturals L-Phenylalanine, 500mg, 50 tablets

**Brand:** source naturals
**Price:** € 35.69
**Availability:** ✅ In Stock

## Summary

> 💡 Elevate your brain chemistry, stay ahead of the curve!

## Quick Answers

- **What is this?** Source Naturals L-Phenylalanine, 500mg, 50 tablets by source naturals
- **How much does it cost?** € 35.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/259907138-source-naturals-l-phenylalanine-500mg-50-tablets)

## Best For

- source naturals enthusiasts

## Why This Product

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

## Key Features

- • **Daily Safe Use:** Formulated for consistent, safe supplementation to keep your mental edge sharp.
- • **Trusted Quality:** Manufactured in the USA by Source Naturals, a brand synonymous with reliability.
- • **Compact & Convenient:** 50 tablets in a travel-friendly bottle—perfect for busy professionals on the go.
- • **Neuro-Boosting Power:** Supports dopamine & norepinephrine synthesis for sharper focus and mood.
- • **Pure Essential Amino Acid:** 500mg of L-Phenylalanine per tablet, ensuring potent, reliable daily support.

## Overview

Source Naturals L-Phenylalanine delivers a potent 500mg dose of this essential amino acid per tablet, acting as a vital precursor to neurotransmitters like dopamine and norepinephrine. Packaged in a compact bottle of 50 tablets, it’s designed for daily use by adults seeking enhanced cognitive function and mood support. Proudly made in the USA, this supplement combines purity, convenience, and trusted quality to help you maintain your mental edge.

## Description

Source Naturals L-Phenylalanine 500mg 50 tablets An Essential Amino Acid L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine and a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine, which becomes L-dopa, which converts to norepinephrine, a key neurotransmitter and an adrenal hormone. L-Phenylalanine is also a direct precursor of PEA (Phenylethylamine), another important neurotransmitter.

## Features

- Compact construction
- Brand: Source Naturals
- Reliable performance
- It is safe for daily use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0096LYY7E |
| ASIN  | B0096LYY7E |
| Additives | Amino Acids |
| Age Range Description | Adult |
| Best Sellers Rank | #161,520 in Health ( See Top 100 in Health ) #3,822 in Multivitamins Nutritional Supplements |
| Brand | Source Naturals |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Customer reviews | 5.0 5.0 out of 5 stars (1) |
| Date First Available | 5 May 2016 |
| Format | Tablet |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 021078001607 |
| Manufacturer  | USA |
| Package Dimensions  | 10 x 10 x 10 cm; 49.9 g |
| Units | 50.0 Count |

## Product Details

- **Age range (description):** Adult
- **Brand:** Source Naturals
- **Dosage form:** Tablet
- **Item form:** Tablet
- **Item weight:** 50 g
- **Number of Items:** 1
- **Package information:** Bottle
- **Special ingredients:** Amino Acids
- **Specific uses for product:** Laboratory
- **Unit count:** 50.0 Count

## Images

![Source Naturals L-Phenylalanine, 500mg, 50 tablets - Image 1](https://m.media-amazon.com/images/I/515EUW1LmlL.jpg)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-04-25*