---
product_id: 274898007
title: "Doctor's Best L-arginine HCL Powder, non-gmo, vegan, Gluten Free, Soy Free, Helps Promote Muscle Growth, 300g"
brand: "doctor's best"
price: "R741"
currency: ZAR
in_stock: true
reviews_count: 9
category: "Doctor's Best"
url: https://www.desertcart.co.za/products/274898007-doctors-best-l-arginine-hcl-powder-non-gmo-vegan-gluten
store_origin: ZA
region: South Africa
---

# Boosts nitric oxide for energy & endurance Vegan, Non-GMO, Gluten & Soy Free 300g pure L-Arginine powder Doctor's Best L-arginine HCL Powder, non-gmo, vegan, Gluten Free, Soy Free, Helps Promote Muscle Growth, 300g

**Brand:** doctor's best
**Price:** R741
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your hustle with every scoop — because peak performance waits for no one!

## Quick Answers

- **What is this?** Doctor's Best L-arginine HCL Powder, non-gmo, vegan, Gluten Free, Soy Free, Helps Promote Muscle Growth, 300g by doctor's best
- **How much does it cost?** R741 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/274898007-doctors-best-l-arginine-hcl-powder-non-gmo-vegan-gluten)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean & Conscious:** Free from GMOs, gluten, soy, and additives—pure wellness for the mindful professional.
- • **Brain & Body Boost:** Supports cardiovascular health, immune function, and cognitive clarity for peak daily performance.
- • **Muscle Growth Catalyst:** Precursor to creatine, helping increase muscle mass and sustain cellular energy.
- • **Power Your Performance:** Clinically-backed L-Arginine fuels nitric oxide production to enhance blood flow and athletic endurance.
- • **Age-Defying Circulation:** Counteract natural nitric oxide decline after 40 to maintain youthful energy and circulation.

## Overview

Doctor's Best L-Arginine HCL Powder is a 300g vegan, non-GMO supplement designed to boost nitric oxide production, supporting improved blood circulation, muscle growth, cardiovascular health, and cognitive function. Free from gluten, soy, and additives, it’s a clean, science-backed formula ideal for professionals seeking enhanced endurance and vitality.

## Description

Doctor's Best L-Arginine HCL powder helps support athletic endurance and helps boost nitric oxide production. L-arginine also helps regulate blood pressure, helps improve cardiovascular health, Helps support a healthy immune system, Helps improve blood sugar regulation and helps support brain health. Nitric oxide is a powerful neurotransmitter that helps blood vessels relax and also improves circulation. As you age, nitric oxide production falls. By the time you're 40, studies show you're only making about half or less of what you Made when you were 20. This Doctor's Best Item contains no added colors, flavors, fillers, additives or unnecessary ingredients. Vegan, Non-GMO and gluten free.

Review: Good - Good
Review: Good source of energy - Love it !!!

## Features

- DOCTOR'S BEST L-ARGININE HCL POWDER - an amino acid vital in the synthesis of nitric oxide, which is an essential compound that helps blood circulation. Arginine-derived nitric oxide benefits wound healing and overall circulation, and has been shown to help increase mental acuity, immune function, and memory.*
- AMINO ACID AND NITRIC OXIDE FORMULA - helps support athletic endurance and helps boost nitric oxide production. Cardio fitness, pre-workout, performance, energy and circulation.*
- L-ARGININE - also helps regulate blood pressure, helps improve cardiovascular health, Helps support a healthy immune system, helps improve blood sugar regulation and helps support brain health.*
- L-ARGININE - is a necessary precursor to Creatine which helps supply energy to all of the cells of the body.*
- RESEARCH - suggests that L-Arginine supplementation helps increase muscle mass and may also be beneficial in improving endurance as it is a precursor to creatine, which helps supply energy to all cells of the body.* Helps promote cardio fitness, pre-workout, performance, energy and circulation.*

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TB73AZK |
| ASIN  | B00TB73AZK |
| Additives | Amino Acid |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #8,761 in Health ( See Top 100 in Health ) #160 in Amino Acid Nutritional Supplements |
| Brand | Doctor's Best |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,088) |
| Customer reviews | 4.4 4.4 out of 5 stars (1,088) |
| Date First Available | 3 July 2015 |
| Format | Powder |
| Is Discontinued By Manufacturer  | No |
| Item model number  | DRB-00374 |
| Manufacturer  | Doctor's Best |
| Product Dimensions  | 9.86 x 9.86 x 12.7 cm; 358.34 g |
| Serving Recommendation | 1 scoop (6 grams) |
| Units | 300 Grams |
| Use By Recommendation | Mix 1 level scoop in 8 oz. juice or beverage of your choice daily, or as recommended by a nutritionally-informed physician. |
| Weight | 300 Grams |

## Product Details

- **Brand:** Doctor's Best
- **Diet type:** Vegan
- **Flavour:** Unflavored
- **Item dimensions L x W x H:** 9.9 x 9.9 x 12.7 centimeters
- **Item form:** Powder
- **Item weight:** 0.79 Pounds
- **Primary supplement type:** Creatine
- **Product benefits:** Heart Health Support
- **Special ingredients:** Amino Acid
- **Unit count:** 300 Grams

## Images

![Doctor's Best L-arginine HCL Powder, non-gmo, vegan, Gluten Free, Soy Free, Helps Promote Muscle Growth, 300g - Image 1](https://m.media-amazon.com/images/I/71vu3l3EZsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by A***A on 18 August 2025*

Good

### ⭐⭐⭐⭐⭐ Good source of energy
*by S***N on 26 September 2024*

Love it !!!

### ⭐⭐⭐⭐ good product
*by A***E on 16 September 2023*

works good and assists during workout but also for a good night rest/sleep. If there is a negative, it does taste unpleasant.

## Frequently Bought Together

- Doctors Best Pure L-Arginine Powder, Supports Cardiovascular Health, Non-GMO, Gluten Free, Soy Free, Vegan Net Wt. 10.6 oz (300 Grams)
- Doctors Best L-Citrulline Powder (Kyowa Quality), Supports Circulatory Health, Non-GMO, Gluten Free, Soy Free, Vegan Net Wt. 7 oz (200 Grams)
- Doctors Best Pure L-Glutamine Powder, Supports Muscle Mass & Strength, Non-GMO, Gluten Free, Soy Free, Vegan Net Wt. 10.6 oz (300 Grams)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-25*