L-Leucine

CAS Number: 61-90-5
Source & Form: Fermentation-derived essential branched-chain amino acid (BCAA); white crystalline powder
Applications: Sports nutrition, muscle building, recovery, medical nutrition, aging support
Advantages:

  • Stimulates muscle protein synthesis (mTOR activation)
  • Prevents muscle loss and supports lean mass
  • Essential for athletes, bodybuilders, and aging individuals

What is L-Leucine?
L-Leucine is one of the three branched-chain amino acids (BCAAs) and is considered the most potent in stimulating muscle protein synthesis. It activates the mTOR pathway, a key regulator of cell growth and anabolic processes, making it essential for muscle growth, recovery, and maintenance. L-Leucine also supports blood sugar regulation, wound healing, and the production of growth hormones.

Because the body cannot synthesize leucine, it must be obtained through diet or supplementation. Our L-Leucine is 100% pure, vegan, and produced via non-GMO microbial fermentation, ideal for both sports performance and clinical use.

Key Benefits:

Maximizes muscle growth and retention (especially during calorie deficits)

Activates mTOR for anabolic signaling

Supports post-exercise recovery and reduces muscle breakdown

Essential for elderly nutrition and sarcopenia management

Non-GMO, allergen-free, and easy to blend into formulas

Applications:

  • Pre- and post-workout amino acid supplements
  • Protein powders and muscle-building blends
  • Elderly nutrition and anti-catabolism products
  • Medical recovery and surgical nutrition support

FAQs:
Q: What makes L-Leucine different from other BCAAs?
A: It’s the key driver of muscle protein synthesis and is more anabolic than isoleucine or valine.

Q: Can it be taken alone?
A: Yes, but for full BCAA benefits, it’s often combined with isoleucine and valine.

Q: Is it safe for long-term use?
A: Yes, when used in appropriate dosages as part of a balanced amino acid regimen.

Q: Is it vegan-friendly?
A: Yes, our L-Leucine is produced via plant-based fermentation and contains no animal-derived ingredients.

Sample Package

Aluminum Foil Bag

Barrel Package

lron-ringed Cardboard Drum

General Package

25kqs by Drum

General Package

25kqs by Drum

About the Manufacturer

Anrui Biotechnology Co., Ltd. is a specialized exporter of high-quality food ingredients and additives. We focus on global trade and custom formulation services for functional ingredients, delivering consistent, compliant, and premium-quality supply solutions to our worldwide clients.

Headquartered in Guangzhou, China, Anrui collaborates with GMP-certified manufacturing partners equipped with advanced testing facilities, including HPLC, UV-VIS spectrophotometry, and microbiological analysis, ensuring every batch meets strict international quality and regulatory standards.

Our products are exported to over 60 countries, serving industries such as food, beverages, supplements, and cosmetics.

Why Choose Anrui Bio.

Ready Stock & Fast Shipping
We maintain regular inventory of our most popular sweeteners in our 6,000 m² warehouse, ensuring ready stock and 24-hour dispatch for most orders.
Extensive Product Range
From natural sweeteners like stevia and monk fruit to sugar alcohols and synthetic options, we offer a complete range of sweetening solutions.
Comprehensive Product Certification
Our products are exported globally with full documentation support (COA, MSDS, etc.).
Global Export Experience
Trusted by clients in 50+ countries, we understand the requirements of international food and nutrition markets.

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