L-Valine Powder for Muscle Recovery and Sports Nutrition Formulas
Fermentation-Derived USP/EP/FCC 99% Branched-Chain Amino Acid
Embodies the essence of pure, high-quality dietary supplement ingredients
L-Valine (Essential Branched-Chain Amino Acid)
Muscle Recovery and Sports Nutrition

L-Valine
Purecium L-Valine is a white, free-flowing crystalline powder for sports nutrition, muscle recovery, endurance and clinical nutrition formulations. L-Valine is one of the three essential branched-chain amino acids (BCAAs), alongside L-leucine and L-isoleucine, identified by CAS number 72-18-4 with molecular formula C5H11NO2 and molecular weight 117.15 g/mol. Our L-valine is manufactured by non-GMO microbial fermentation, which inherently yields the natural L-enantiomer, to USP, EP and FCC standards with a 99.0% minimum assay, verified on every batch. Allergen-free, gluten-free, non-GMO and vegan, it is packed in 25 kg drums with a 25 kg minimum order and full regulatory documentation for B2B buyers worldwide.
Product name: L-Valine (Essential Branched-Chain Amino Acid)
Molecular formula: C5H11NO2
Starting material: Microbial fermentation (non-GMO plant-based substrate)
Grade: USP / EP / FCC
Heavy Metals: Conforms to USP/EP
Pesticide residue: Conforms to USP/EP
Packing size: 25kg/drum
CAS#: 72-18-4
Molecular weight: 117.15 g/mol
Source: Fermentation (L-enantiomer)
Specification: 99.0% min assay (USP), white crystalline powder
Country of origin: China
Residual solvent: Conforms to USP/EP
Allergen free/Gluten-free/Non-GMO/Vegan/Non-Irradiation:

L-Valine Overview
L-Valine is an essential branched-chain amino acid, which means the human body cannot synthesize it and it must be obtained from diet or supplementation, making it a core ingredient in sports nutrition and muscle-recovery products. It is identified by CAS number 72-18-4, molecular formula C5H11NO2 and molecular weight 117.15 g/mol. As one of the three BCAAs, L-valine contributes to muscle protein metabolism, energy production during exercise and the maintenance of nitrogen balance.
For the dietary supplement industry, L-valine is used in sports nutrition, muscle recovery, endurance and strength products, usually in balanced BCAA blends with L-leucine and L-isoleucine. Purecium supplies L-valine as a white crystalline powder standardized to 99.0% minimum assay, produced by microbial fermentation and sold exclusively as a B2B raw material for distributors, contract manufacturers, private-label producers and finished supplement brands.
Source & Ingredient Identity
Purecium L-Valine is manufactured by microbial fermentation, the dominant commercial route for food-grade valine, in which selected microbial strains convert non-GMO plant-based sugars into the L-enantiomer under controlled fermentation conditions, followed by purification by crystallization. The fermentation process inherently produces the natural L-enantiomer, the only form used in human nutrition.
The product is standardized to 99.0% minimum assay and conforms to USP-NF, European Pharmacopoeia and FCC monographs as applicable, produced in China and non-irradiated, with no allergens, no gluten and no GMO material. For B2B buyers, the critical purchasing checks are the assay on the Certificate of Analysis, specific optical rotation confirming the L-enantiomer, and the related-impurity profile, which is the key quality parameter for amino acids.
Key Characteristics of L-Valine
1. Essential BCAA for muscle metabolism. L-Valine is one of the three branched-chain amino acids that are oxidized in skeletal muscle rather than the liver; along with L-leucine and L-isoleucine it supports muscle protein turnover, recovery and the maintenance of lean mass, a role reflected in the sports-nutrition guidance of regulatory and nutrition authorities.
2. Energy substrate during exercise. Branched-chain amino acids, including valine, can be oxidized to provide energy during prolonged exercise, which supports endurance performance and spares muscle glycogen; published clinical studies suggest benefits of BCAA supplementation for exercise recovery and muscle soreness.
3. Enantiomerically defined and well regulated. L-Valine is recognized as GRAS by the FDA and covered by USP-NF, European Pharmacopoeia and FCC monographs, with specific optical rotation confirming the L-enantiomer. Its crystalline form, neutral taste and excellent flow make it easy to blend in BCAA powders, capsules and tablets.
L-Valine Manufacturing
The manufacturing process follows a fermentation route: selected microbial strains convert non-GMO plant-based sugars into L-valine under controlled fermentation conditions, after which the broth is filtered, purified by ion exchange and crystallization, and dried to a white crystalline powder. Every production stage is process-controlled, and each finished lot is verified before release.
Each batch is tested by the methods of the current USP-NF or European Pharmacopoeia monograph for valine, including identification by infrared spectroscopy, assay (99.0% minimum on a dried basis), specific optical rotation confirming the L-enantiomer, related substances and impurities by HPLC, heavy metals, residual solvents and microbial limits, all reported on the batch Certificate of Analysis. Each lot is traceable from fermentation culture to finished drum.
Applications of L-Valine
Sports nutrition and muscle recovery is the primary application of L-valine. Mechanistically, the BCAAs are oxidized in skeletal muscle, where they contribute to energy production during exercise and provide substrate for muscle protein metabolism; published clinical studies suggest that BCAA supplementation supports recovery from exercise and reduces muscle soreness after intense training. Typical servings range from 1 g to 3 g of L-valine within a balanced BCAA blend.
Endurance, strength and clinical nutrition form the second cluster. L-valine is used in endurance formulas for its energy-substrate role, in strength and recovery products alongside L-leucine and L-isoleucine, and in clinical and medical nutrition where branched-chain amino acids support nitrogen balance and muscle maintenance. The FDA recognizes L-valine as GRAS for food use, and EFSA has assessed amino acids including valine for use in food supplements; finished-product claims should always follow the regulations of the destination market.
L-Valine is compatible with capsules, tablets, sachets and powder blends, and it is the standard third component of BCAA blends. The white crystalline powder has a neutral taste and good flow, and it is commonly paired with L-leucine, L-isoleucine, electrolytes and citrulline or beta-alanine in sports formulas. Formulators should keep valine in sealed containers to avoid moisture uptake during blending and storage.
Manufacturing & Quality Control
Purecium L-Valine is produced in facilities operating under ISO 9001 and FSSC 22000 certified quality systems, with Kosher and Halal certification available. Analytical methods follow the current USP-NF and European Pharmacopoeia monographs for valine, and each batch is released with a verified assay of 99.0% minimum on a dried basis.
Each commercial lot is fully traceable from fermentation culture to finished drum. Alongside the CoA, Purecium provides the specification sheet, SDS, allergen and gluten statements, non-GMO declarations and stability data on request, giving buyers the documentation needed for raw-material approval and finished-product registration.
L-Valine for B2B Supplement Manufacturing
Purecium supplies L-Valine exclusively as a B2B raw material for distributors, contract manufacturers, private-label producers and finished supplement brands. The minimum order quantity is 25 kg; the powder is packed in 25 kg drums with food-grade aluminum-foil inner bags, and samples and full documentation are available before commitment.
For North American customers, inventory is staged at Purecium's US warehouse, enabling pickup or delivery within approximately two days. Global delivery covers Hong Kong, mainland China, the EU and other regions, with export documentation prepared for every shipment. Purecium also supports custom mesh sizing and provides technical and regulatory communication to move L-valine from ingredient selection to commercial formulation.
Reviewed by the Chief Quality Assurance / Regulatory Affairs Specialist at Purecium for technical accuracy and regulatory alignment.
L-Valine Frequently Asked Questions (FAQ) for B2B Buyers
Q1. What is L-valine used for in dietary supplements?
L-Valine is used primarily in sports nutrition, muscle recovery, endurance and strength products, usually as part of a balanced BCAA blend with L-leucine and L-isoleucine. As an essential branched-chain amino acid, it contributes to muscle protein metabolism, energy production during exercise and nitrogen balance. Purecium supplies L-valine as a 99% minimum USP/EP/FCC-grade crystalline powder produced by non-GMO fermentation for distributors, contract manufacturers, private-label producers and supplement brands.
Q2. Why is L-valine classified as an essential branched-chain amino acid?
Because the human body cannot synthesize valine, it must be supplied through diet or supplementation, which is why it is classified as an essential amino acid. It is also one of the three branched-chain amino acids (with L-leucine and L-isoleucine), a group defined by their branched side-chain structure and their unique property of being oxidized primarily in skeletal muscle rather than the liver, which underpins their role in sports nutrition.
Q3. How does L-valine support muscle recovery and sports performance?
Branched-chain amino acids, including valine, are oxidized in skeletal muscle where they contribute to energy production during exercise and provide substrate for muscle protein metabolism. Published clinical studies suggest that BCAA supplementation supports recovery from intense exercise and reduces exercise-induced muscle soreness. L-Valine is most effective as part of a balanced BCAA blend, with L-leucine as the primary driver of muscle protein synthesis signaling.
Q4. What is the difference between L-valine, L-leucine and L-isoleucine?
The three BCAAs share a branched side-chain structure but have distinct roles. L-Leucine is the primary activator of muscle protein synthesis signaling, L-isoleucine supports glucose uptake and energy metabolism, and L-valine contributes to nitrogen balance and serves as an energy substrate during prolonged exercise. Sports formulas typically combine all three in ratios such as 2:1:1 (leucine:isoleucine:valine) to cover the full BCAA profile.
Q5. What dose of L-valine is commonly used in sports nutrition products?
In a standard 2:1:1 BCAA blend, a typical serving of 5 g to 7 g total BCAAs provides about 1.25 g to 1.75 g of L-valine. In standalone or higher-dose formulas, L-valine servings of 1 g to 3 g are common, taken around training. Formulators should set label strength according to destination-market regulations and the finished-product positioning.
Q6. What assay and quality specifications should I expect for L-valine?
A high-purity L-valine should be assayed at 99.0% minimum on a dried basis against the USP-NF or EP monograph, with identification by infrared spectroscopy, specific optical rotation within the pharmacopeial range confirming the L-enantiomer, related substances and impurities controlled by HPLC, heavy metals within limits, conforming residual solvents and microbial counts within USP/EP limits. Purecium reports all of these on the batch Certificate of Analysis, including the assay method, production date and expiry date.
Q7. Is L-valine safe for use in dietary supplements?
Yes. L-Valine is recognized as GRAS by the FDA in the United States, is covered by USP-NF and European Pharmacopoeia monographs, and EFSA has assessed amino acids including valine for use in food supplements. It is a normal dietary amino acid present in protein foods and is well tolerated at typical supplement servings. As with any ingredient, formulators should confirm destination-market practice for dosage and claim wording.
Q8. Why is enantiomeric purity important for L-valine?
Only the L-enantiomer of valine is used in human nutrition; the D-form is not metabolized through the BCAA pathways and is not appropriate for food supplements. Fermentation production inherently yields the L-enantiomer, and specific optical rotation measured against the pharmacopeial value confirms it on every batch. Buyers should always request the specific rotation result on the CoA and confirm the method.
Q9. Can L-valine be combined with other sports-nutrition ingredients?
Yes. L-Valine is commonly paired with L-leucine and L-isoleucine in BCAA blends, with electrolytes and carbohydrates in endurance formulas, and with citrulline, beta-alanine or creatine in pre- and intra-workout products. These combinations are standard in the sports-nutrition category and show no known negative interactions at label doses. Formulators should verify ingredient compatibility, particle-size matching and blend uniformity, and confirm label claims comply with destination-market regulations.
Q10. Is L-valine vegan?
Yes. Purecium's L-valine is manufactured by microbial fermentation from non-GMO plant-based sugars, with no animal-derived starting materials or enzymes of animal origin. It carries a clear vegan, non-GMO, allergen-free and gluten-free statement and is suitable for vegan and vegetarian formulations, including plant-based sports nutrition.
Q11. What quality documentation should I request when sourcing L-valine?
A professional supplier should provide a current specification sheet, a batch-specific Certificate of Analysis showing identification, assay (99.0% minimum), specific optical rotation, related substances by HPLC, heavy metals, residual solvents and microbial results, an SDS, allergen and gluten statements, and non-GMO declarations. Also request Kosher and Halal certificates, copies of the ISO 9001 and FSSC 22000 certificates, and stability data for registration purposes. Purecium provides this full documentation set on request for every shipment.
Q12. What is the MOQ and lead time for L-valine from Purecium?
The minimum order quantity is 25 kg. The powder is packed in 25 kg drums with food-grade aluminum-foil inner bags, and samples and technical documentation are available before you commit. Standard production lead time is typically 7 to 15 working days after order confirmation, with faster dispatch for stocked items. For North American customers, Purecium holds inventory at its US warehouse, enabling pickup or delivery within approximately two days. Export documentation is prepared for every shipment.
Q13. How is the L-enantiomeric purity of L-valine verified?
Enantiomeric purity is verified primarily by specific optical rotation measured against the pharmacopeial monograph value for L-valine, and confirmed by chiral HPLC when required. The L-enantiomer rotates plane-polarized light within a defined range that distinguishes it from the D-form and racemic mixtures. Fermentation production inherently yields the L-enantiomer, and every Purecium batch reports the specific rotation result on the CoA.
Q14. How should L-valine be stored, and what is the shelf life?
Store L-valine in tightly sealed original containers in a cool, dry place below 25 degrees Celsius, protected from moisture. The crystalline powder is stable under these conditions, and shelf life is generally 36 months from the date of manufacture. Each shipment's CoA states the production date and expiry date for inventory planning.
Q15. Why should we source L-valine from Purecium?
Purecium supplies L-Valine as a B2B raw material standardized to 99.0% minimum assay and produced to USP, EP and FCC standards via non-GMO fermentation, with specific optical rotation confirming L-enantiomeric purity on every batch. Every batch is released with a full Certificate of Analysis including related-substances testing by HPLC, an SDS and supporting documentation. The minimum order is 25 kg, inventory is staged at our US warehouse for two-day pickup, and global delivery covers Hong Kong, mainland China, the EU and beyond. For long-term supply relationships, Purecium provides consistent quality, batch traceability, regulatory documents and direct technical communication rather than one-off spot pricing.
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