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APIs L-Leucine, CAS 61-90-5, Branched-Chain Amino Acid, BCAA, muscle protein synthesis
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APIs L-Leucine, CAS 61-90-5, Branched-Chain Amino Acid, BCAA, muscle protein synthesis

L-Leucine: A Critical Pharmaceutical and Nutraceutical Building Block

L-Leucine is an essential branched-chain amino acid (BCAA) that serves as a fundamental building block for protein synthesis and a key signaling molecule in metabolic pathways. As a versatile active ingredient, our high-purity L-Leucine complies with USP/EP/JP pharmacopoeia standards, ensuring it meets stringent global regulatory requirements for pharmaceutical and nutraceutical applications.

In clinical nutrition, it is a vital component of amino acid infusion solutions and oral supplements for patients with muscle-wasting conditions. Beyond therapeutics, L-Leucine is the cornerstone of sports nutrition, proven to stimulate muscle protein synthesis and aid recovery. It is also a growing ingredient in metabolic health and healthy aging formulations. We supply premium-grade L-Leucine to drive innovation in pharmaceutical manufacturing and the dynamic wellness industry.

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    L-Leucine (CAS 61-90-5) – Pharmaceutical and Nutraceutical Grade

    Scientific Profile and Key Functions

    L-Leucine (CAS 61-90-5) is an essential branched-chain amino acid (BCAA) renowned for its unique role as a direct activator of the mTOR (mammalian target of rapamycin) pathway. This activation is the primary trigger for initiating muscle protein synthesis. Our high-purity, pharmaceutical-grade L-Leucine is manufactured under cGMP guidelines, guaranteeing exceptional quality, consistency, and low levels of impurities for all your formulation needs.

    Primary Applications in Pharma and Wellness:

    Clinical Nutrition & Medical Food: A critical Active Pharmaceutical Ingredient (API) in parenteral (IV) nutrition solutions and specialized medical foods designed to prevent and treat muscle atrophy, sarcopenia, and malnutrition in critically ill or postoperative patients.

    Sports Nutrition & Functional Foods: The most critical BCAA in sports supplements, clinically shown to enhance muscle protein synthesis (MPS), accelerate recovery, reduce muscle soreness, and support strength gains.

    Metabolic Health & Healthy Aging: A key ingredient in formulations targeting age-related muscle loss (sarcopenia) and metabolic syndrome, helping to preserve lean body mass and support glucose metabolism.

    Pharmaceutical Formulations: Used as a stable and pure excipient or active ingredient in solid-dose and nutraceutical products.

    Our Quality and Supply Commitment

    We guarantee a reliable supply of L-Leucine that delivers batch-to-batch consistency in purity and performance. Our product is supported by comprehensive regulatory documentation, including Certificates of Analysis (CoA) and full DMF support, ensuring seamless integration into your pharmaceutical development and manufacturing processes for both therapeutics and wellness products.

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