Pure L Carnitine Tartrate Powder
2.Appearance: White Powder
3.Specification: 99% L-carnitine
4.CAS NO: 541-15-1
5.Packing Specification: 25kg/drum, 27 drums/tray
6.Delivery: 3-7working days
7.Main Market: European, North America, Asia
8.Certification: cGMP,KOSHER,HALAL,BRC,ORGANIC,ISO9001,ISO22000 etc.
Pure L Carnitine Tartrate Powder - Premium Quality from Leading Manufacturer
As a national high-tech firm focusing on natural plant extracts and amino acid products, we provide you with the ultimate benefits in the production of this vital metabolic ingredient. With a world-class plant of 20,000 square meters, 100,000-level purification workshops and more than 10 sophisticated production lines, our yearly production capacity is 3,000 tonnes. What makes our Pure L Carnitine Tartrate Powder stand out is our strict quality control system, supported by SGS-standardized laboratories and more than 20 professor-level R&D professionals. Each batch is guaranteed to be 98-102% pure and have no D-isomer contamination. You get a stable, free-flowing powder that eliminates the hygroscopicity problems associated with base L-Carnitine.
Product Introduction
The product is the best crystallised salt form of L-Carnitine with food grade L-Tartaric acid in the exact 2:1 molar ratio. It is a white crystalline powder, which has better stability and flowability than hygroscopic base forms. It is an important metabolic cofactor that moves long-chain fatty acids into mitochondria for energy synthesis. This substance offers rapid absorption for post-workout recovery and fat metabolism applications with about 68.2% L-Carnitine and excellent solubility >20g/100ml at room temperature.
Third-Party Test Report
Chirality Verification: Independent polarimetry testing by SGS verifies 100% L-isomer configuration, with D-Carnitine content held to less than 0.1%, removing harmful stereoisomer contamination that blocks cellular uptake.
ICP-MS Heavy Metal Analysis: Eurofins laboratory accreditation confirms our strict safety profile with Lead <1.0ppm, Arsenic <0.5ppm, Mercury <0.05ppm and Cadmium <0.5ppm – exceeding EU regulatory standards for dietary supplements.
Microbiological Safety: Total Plate Count <1000 CFU/g, Yeast & Mould <100 CFU/g, Salmonella and E.coli not detected in 25g samples, tested by qualified third party microbiology testing.

Certificate Of Analysis
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Product Name
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L-carnitine
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Item of Test
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Limits of Test
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Results of Test
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Appearance
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White crystalline powder
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Complies
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Assay
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≥99%
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99.95%
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Odor
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Characteristic
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Complies
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PH
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3.0~4.5
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4.7
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Loss on drying
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≤0.5
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0.2
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Residual solvents
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≤0.5
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0.04
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Residual pesticides
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≤0.5%
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Complies
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||
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Heavy Metal
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<10ppm
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Complies
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||
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Arsenic (As)
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<1ppm
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Complies
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||
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Lead(Pb)
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<1ppm
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Complies
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||
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Cadmium (Cd)
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<1ppm
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Complies
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||
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Mercury (Hg)
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≤0.05ppm
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Complies
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||
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Microbiology
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||||
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Total Plate Count
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<1000cfu/g
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95cfu/g
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Yeast & Mold
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<100cfu/g
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33cfu/g
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E.Coli
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Negative
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Complies
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S. Aureus
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Negative
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Complies
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Salmonella
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Negative
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Complies
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||
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Pesticides
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Negative
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Complies
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||
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Conclusion
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Conform with specification
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Production Process
Step 1 - Microbial Fermentation: High-yield bacterial strains are cultured in 10,000L bioreactors under controlled aerobic conditions for 72-96 hours yielding L-Carnitine base with >99% L-isomer purity determined by constant observation of optical rotation.
Step 2 - Purification and Ion Exchange: The fermentation broth is filtered with activated charcoal and multi-stage ion exchange resin columns to remove endotoxins, proteins and chromogenic contaminants.
Step 3 - Tartrate Salt Formation: Crystallisation is initiated by adding of USP grade L-Tartaric acid in aqueous solution in stoichiometric amount at a pH of 3.5-4.0 and a temperature of 45-55°C.
Step 4 - Crystallisation and Centrifugation: The solution is cooled to 5-10°C over a period of 8-12 hours to allow the formation of homogeneous crystals. Wet crystalline product was obtained by centrifugal separation at 3000 rpm.
Step 5 - Vacuum Drying & Milling: Wet crystals are vacuum dried in tray dryers at 50-60°C under 100 mbar pressure till Loss on drying becomes 0.5%. Air-jet milling through 80 mesh provides final powder.
Step 6 - Quality Testing & Packaging: Each batch goes through 27 points of testing including HPLC assay, polarimetry, heavy metals, microbiological testing and screening for residual solvents before being double-bagged in PE and packed in fibre drums under nitrogen.

Pure L Carnitine Tartrate Powder Advantages
Better Stability Profile: This tartrate salt shows excellent powder flowability and no agglomeration during tableting, encapsulation and powder blending processes for 24+ months under optimal storage circumstances. In comparison, hygroscopic base forms liquefy on contact with ambient moisture.
Enhanced Bioavailability: Clinical pharmacokinetic data show that plasma carnitine levels increase rapidly within 2-3 hours of intake, allowing the anabolic window to open earlier for athletes requiring urgent support in fatty acid transport and muscle repair.
Manufacturing Excellence: The high flowability index (measured >65 on the Carr Index) decreases equipment downtime due to hopper bridging and its compressibility enables direct compression tableting without excessive use of binders or disintegrants.

Pure L Carnitine Tartrate Powder Application
Elite Sports Nutrition Formulations: Added to post-workout recovery matrices and pre-exercise energy blends at levels of 1000-2000mg per serving. The tartrate form increases androgen receptor density and decreases indicators for exercise induced muscle damage such as Creatine Kinase by as much as 45% in resistance trained athletes .
Functional Beverage Systems: Ideal for RTD weight management and energy shot applications with crystal clear solubility and pH stability range in the 3.0-4.5 range. This additive avoids browning reactions and sedimentation throughout 18 month shelf life in acidic liquid matrices with citric acid and natural flavours.
Clinical Nutrition Protocols: Included in formulations for renal dialysis patients and vegetarian/vegan dietary supplements when endogenous carnitine synthesis is limited. Pharmaceutical grade purity promotes medical nutrition therapy for primary and secondary carnitine deficient disorders.

OEM/ODM Support
Custom Formulation Development: Our professor-level R&D team works with you to create targeted formulations combining Pure L Carnitine Tartrate Powder with synergistic ingredients such as Green Tea Extract, Conjugated Linoleic Acid or Acetyl-L-Carnitine. These formulations are customised to your specific market positioning and consumer demographics.
Flexible Dose Form Manufacturing: Soft capsules (500-1000mg fill weight), hard vegetarian capsules (size 00-0), compressed tablets with customised shapes and scoring, stick packs for fast beverages, pre-mixed powder blends with natural sweeteners and flavouring systems.

Why Choose Us?
Over 20 years of manufacturing experience, Shaanxi Hongda Phytochemistry is your most trustworthy partner on product supply. Our vertical integration from raw material fermentation to completed product packaging offers total quality control and cost efficiency that middleman dealers can’t provide. With our 3,000 sqm warehouse with available inventory for 3-7 day worldwide delivery, get direct factory prices and flexible MOQs from just 25kg+. With our vast portfolio of cGMP, FSSC22000, HALAL, KOSHER & ORGANIC Certifications we may access international markets such as USA US, EU, Australia and Middle East without any regulatory barriers.


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FAQ
Q: What makes your product different from base L-Carnitine?
A: Our tartrate form offers critical advantages including moisture resistance, superior flowability for manufacturing, pleasant taste profile, and faster absorption kinetics, making it the preferred choice for solid-dose supplements and powder blends.
Q: Can you provide samples for testing before bulk purchase?
A: Absolutely! We offer 50-100g sample packages with full COA documentation. Sample lead time is 2-3 business days with express shipping available to evaluate quality and compatibility with your formulation.
Q: What is your minimum order quantity and pricing structure?
A: Our standard MOQ is 25kg (one drum) for initial orders. Volume discounts apply for quantities exceeding 500kg. Contact our sales team at duke@hongdaherb.com for customized quotations based on your specific requirements and delivery destination.
Contact Us
Ready to elevate your product formulations with premium Pure L Carnitine Tartrate Powder?
Email: duke@hongdaherb.com


















