---
product_id: 3628587
title: "Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules"
brand: "source naturals"
price: "B/.72"
currency: PAB
in_stock: true
reviews_count: 9
category: "Source Naturals"
url: https://www.desertcart.com.pa/products/3628587-source-naturals-l-leucine-energy-support-a-free-form-essential
store_origin: PA
region: Panama
---

# 3 capsules/day for sustained energy Free from gluten, soy, dairy & artificial additives Branched-chain amino acid for muscle synthesis Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules

**Brand:** source naturals
**Price:** B/.72
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your energy, amplify your strength, own your day!

## Quick Answers

- **What is this?** Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules by source naturals
- **How much does it cost?** B/.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/3628587-source-naturals-l-leucine-energy-support-a-free-form-essential)

## 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

- • **Easy Daily Dose:** Just 2-3 capsules between meals to keep your energy and focus on point.
- • **Clean Energy, No Crash:** Boost mental alertness and stamina without jitters or sugar spikes.
- • **Pure & Trusted Formula:** Crafted in the USA with zero gluten, soy, dairy, or artificial fillers.
- • **Power Your Peak Performance:** L-Leucine fuels muscle protein synthesis for explosive strength gains.
- • **Decades of Wellness Expertise:** Backed by 40+ years of Source Naturals’ commitment to optimal health.

## Overview

Source Naturals L-Leucine is a premium branched-chain amino acid supplement designed to support muscle protein synthesis and sustained energy. Manufactured in the USA under strict cGMP standards, it contains no gluten, soy, dairy, or artificial additives, making it a clean, trusted choice for athletes and professionals seeking enhanced physical and mental performance.

## Description

L-Leucine is an essential amino acid, specifically classified as a "branched-chain amino acid" (BCAA). BCAAs, especially leucine, stimulate muscle protein synthesis and may be the major fuel involved in anabolic reactions. This makes them especially important for body builders and other athletes in sports that demand explosive strength. Please contact our in-house customer support if you have any questions.

Review: Luceine - Very good supplement. Gave me tons of energy. 3 pills/day, I’ve only taken two so far
Review: Added energy - I generally run out of energy around 1pm. Taking the L-Leucine helps with my mental alertness and energy without any jitters. This definitely helps me process my calories better.

## Features

- ULTIMATE ENERGY SUPPORT. L-Leucine is an essential amino acid, specifically classified as a "branched-chain amino acid" (BCAA). BCAAs, especially leucine, stimulate muscle protein synthesis and may be the major fuel involved in anabolic reactions. This makes them especially important for body builders and other athletes in sports that demand explosive strength.*
- Suggested Use: 2 to 3 capsules daily between meals.
- Well Made Supplement: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.
- Over 40 years of trust. source naturals was created in 1982 by ceo ira goldberg to support everyone’s potential to enjoy optimal health.
- Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration. (FDA)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B000QJ4E9I |
| Best Sellers Rank | #160,157 in Health & Household ( See Top 100 in Health & Household ) #318 in Branched Chain Amino Acids Nutritional Supplements |
| Customer Reviews | 4.3 4.3 out of 5 stars (105) |
| Date First Available  | May 7, 2005 |
| Department  | Health and Beauty>Health and Wellness |
| Is Discontinued By Manufacturer  | No |
| Item model number  | SN2054 |
| Manufacturer  | Source Naturals |
| Product Dimensions  | 3.11 x 3.11 x 5.6 inches; 5.44 ounces |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Source Naturals
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.34 Pounds
- **Item dimensions L x W x H:** 3.11 x 3.11 x 5.6 inches
- **Primary Supplement Type:** L-Leucine
- **Product Benefits:** Energy Management
- **Unit Count:** 240.0 Count

## Images

![Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules - Image 1](https://m.media-amazon.com/images/I/61Mr+mg8s3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Luceine
*by C***G on March 22, 2025*

Very good supplement. Gave me tons of energy. 3 pills/day, I’ve only taken two so far

### ⭐⭐⭐⭐⭐ Added energy
*by B***D on December 6, 2018*

I generally run out of energy around 1pm. Taking the L-Leucine helps with my mental alertness and energy without any jitters. This definitely helps me process my calories better.

### ⭐⭐⭐⭐ Great value
*by J***B on November 11, 2019*

Great value

## Frequently Bought Together

- Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules
- Nutricost HMB (Beta-Hydroxy Beta-Methylbutyrate) 1000mg (240 Capsules) - 500mg Per Capsule, 120 Servings - Gluten Free and Non-GMO
- MAAC10 Ursolic Acid 50mg (100 Capsules 3X for 150mg 33-Day Serving) | Sourced from Rosemary Extract | Third-Party Lab Tested | AMPK & Sirtuin Activator

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-26*