---
product_id: 269998716
title: "Doctor's Best, Pure L-Glutamine Powder, 10.6 oz (300 g)"
brand: "doctor's best"
price: "¥8580"
currency: JPY
in_stock: true
category: "Doctor's Best"
url: https://www.desertcart.jp/products/269998716-doctors-best-pure-l-glutamine-powder-10-6-oz-300
store_origin: JP
region: Japan
---

# Supports rapid muscle recovery Non-GMO, vegan & gluten-free 300g pure L-Glutamine powder Doctor's Best, Pure L-Glutamine Powder, 10.6 oz (300 g)

**Brand:** doctor's best
**Price:** ¥8580
**Availability:** ✅ In Stock

## Summary

> 💥 Elevate your gains and recovery with the pure power of L-Glutamine!

## Quick Answers

- **What is this?** Doctor's Best, Pure L-Glutamine Powder, 10.6 oz (300 g) by doctor's best
- **How much does it cost?** ¥8580 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/269998716-doctors-best-pure-l-glutamine-powder-10-6-oz-300)

## 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:** Non-GMO, gluten-free, soy-free, and vegan-friendly for mindful supplementation.
- • **Immune System Ally:** Supports optimal immune function to keep you performing at your peak.
- • **Fuel Your Muscle Growth:** Pure L-Glutamine powers muscle mass and strength gains.
- • **Trusted Quality & Performance:** Backed by Doctor’s Best with 4.6-star rating from 700+ fitness pros.
- • **Accelerate Post-Workout Recovery:** Boost hydration and repair for faster comeback after intense sessions.

## Overview

Doctor's Best Pure L-Glutamine Powder delivers 300g of premium, unflavored amino acid designed to support muscle growth, strength, and post-workout recovery. This vegan, non-GMO, gluten- and soy-free formula enhances muscle hydration and immune function, making it an essential supplement for active adults seeking faster recovery and improved athletic endurance.

## Description

Doctor's Best L-Glutamine powder contains glutamine, an amino acid that is a building block of protein. Glutamine is most commonly used to support muscle growth, skeletal muscles and athletic endurance. Supplementing with l-glutamine allows the body The much-needed amino acids to increase muscle hydration. This is an essential process in the body that supports muscle recovery from high intensity workouts.

## Features

- DOCTOR’S BEST PURE L-GLUTAMINE POWDER – an amino acid that is a building block of protein. L-Glutamine is used to support muscle growth, skeletal muscles and athletic endurance. L-Glutamine is an amino acid that occurs naturally in our body. It is found abundantly in the muscle tissues and circulates freely in the blood.
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
- AMINO ACID - L-Glutamine allows the body the much-needed amino acids to increase muscle hydration. This is an essential process in the body that supports muscle recovery from high intensity workouts.
- RECOVERY OF MUSCLE STRENGTH – L-Glutamine helps promote muscle growth and support athletic performance. L-Glutamine is used for muscle production, that means the body is actively using it to repair injured or damaged muscle tissue. Makes it a great supplement to take to reduce recovery time, boost muscle mass or ease minor aches and pains.
- OPTIMAL IMMUNE FUNCTION – Glutamine supplements may help improve immune function and preserve protein stored in the body. Glutamine plays an important role in immune function, as the body may not be able to produce enough of it.
- Non-GMO / Gluten Free / Soy Free / Vegan

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CJPNFGL |
| ASIN  | B07CJPNFGL |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Soy Free |
| Best Sellers Rank | #8,662 in Health ( See Top 100 in Health ) #159 in Amino Acid Nutritional Supplements |
| Brand Name | Doctor's Best |
| Color | red |
| Container Type | Bottle |
| Customer Reviews | 4.6 4.6 out of 5 stars (705) |
| Customer reviews | 4.6 4.6 out of 5 stars (705) |
| Diet Type | Gluten Free |
| Dosage Form | Powder |
| Flavor | Unflavored |
| Global Trade Identification Number | 00753950004917 |
| Item Dimensions | 9.9 x 9.9 x 12.7 centimeters |
| Item Form | Powder |
| Item Nype Name | Muscle Amino Acid |
| Item Weight | 36 g |
| Item model number  | DRB-00491 |
| Manufacturer | Doctor’s Best, Inc |
| Manufacturer  | Doctor’s Best, Inc |
| Manufacturer Part Number | DRB-00491 |
| Material Features | GMO Free, Gluten Free, Vegan |
| Material Type Free | en_AE |
| Model Name | r's Best Pure L-Glutamine Powder, Supports Muscle Mass, Strength & Post-Workout Recovery, Amino Acid, 300g |
| Model Number | DRB-00491 |
| Number of Items | 1 |
| Primary Supplement Type | protein |
| Product Benefits | Muscle Growth |
| Product Dimensions  | 9.86 x 9.86 x 12.7 cm; 36.29 g |
| Recommended Uses For Product | Muscle Growth |
| Special Ingredients | L-Glutamine |
| Specific Uses For Product | Laboratory |
| UPC | 753950004917 |
| Unit Count | 300 Grams |

## Product Details

- **Brand:** Doctor's Best
- **Diet type:** Gluten Free
- **Flavour:** Unflavored
- **Item dimensions L x W x H:** 9.9 x 9.9 x 12.7 centimeters
- **Item form:** Powder
- **Item weight:** 36 g
- **Primary supplement type:** protein
- **Product benefits:** Muscle Growth
- **Special ingredients:** L-Glutamine
- **Unit count:** 300 Grams

## Images

![Doctor's Best, Pure L-Glutamine Powder, 10.6 oz (300 g) - Image 1](https://m.media-amazon.com/images/I/71gv7CBYzDL.jpg)

## Questions & Answers

**Q: What does L-Glutamine support in the body?**
A: L-Glutamine is an amino acid that supports muscle mass and strength, muscle cell hydration, and post-workout recovery.* It is the most abundant amino acid in skeletal muscle and plays a key role in protein synthesis.*

**Q: Is it suitable for vegans and free of allergens?**
A: Yes. Doctor's Best Pure L-Glutamine Powder is vegan, non-GMO, gluten free, and soy free. It contains only one ingredient — pure L-Glutamine — with no fillers, flavors, or additives.

**Q: When is the best time to take it?**
A: For optimal results, drink 1 hour before exercise. Repeat after exercise or before bedtime, or as recommended by a nutritionally informed physician.

**Q: How to mix the powder?**
A: Add 1 level scoop (~5g) to 8 oz of juice or a protein shake and mix well. Simple to add to your favorite beverages and to your routine.

**Q: What's the daily dosage?**
A: Use 1 level scoop (~5g) per serving. Each 300g container provides approximately 60 servings. Follow the mixing instructions or take as recommended by a nutritionally informed physician.

## Frequently Bought Together

- Doctors Best Pure L-Glutamine Powder, Supports Muscle Mass & Strength, Non-GMO, Gluten Free, Soy Free, Vegan Net Wt. 10.6 oz (300 Grams)
- 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)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-06*