As a leading supplier of high-quality nutritional ingredients, we are proud to present L-Carnitine Tartrate (LCLT) — a stable, highly absorbable form of L-Carnitine that stands out in the global sports nutrition and weight management markets. Backed by over two decades of clinical research and manufactured to international quality standards, LCLT is the preferred choice for brands, formulators, and fitness enthusiasts seeking reliable, science-backed results.
What Is L-Carnitine Tartrate (LCLT)?
L-Carnitine Tartrate is a crystalline salt formed by combining L-Carnitine (the biologically active form of carnitine) with L-tartaric acid in a stoichiometric ratio, resulting in a white, non-hygroscopic powder with exceptional stability and solubility. Unlike free L-Carnitine, which is prone to moisture absorption and low bioavailability, LCLT is engineered for optimal performance in both solid and liquid formulations, making it versatile for a wide range of products.
Key Technical Specifications:
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CAS Number: 36687-82-8
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Molecular Formula: C₁₁H₂₀N₂O₈
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Molecular Weight: 308.29 g/mol
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Purity: ≥98% with a minimum of 68% elemental L-Carnitine content
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Appearance: White to off-white crystalline powder, odorless or with a mild characteristic odor
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Certifications: FSSC 22000, Kosher, Halal, Non-GMO, Vegan, Allergen-free (compliant with FALCPA, FASTER, and EU standards)
Science-Backed Benefits: Why Choose LCLT?
LCLT’s unique molecular structure delivers superior bioavailability (15-20% higher than standard L-Carnitine) and targeted benefits, supported by dozens of human clinical studies across genders and age groups. Its core advantages make it a staple in active nutrition formulations:
1. Accelerate Fat Metabolism & Energy Production
As the body’s natural “fat shuttle,” L-Carnitine plays a critical role in transporting long-chain fatty acids across the mitochondrial membrane for β-oxidation — the process that converts fat into ATP (cellular energy). Without L-Carnitine, fat cannot be efficiently burned for energy, making LCLT an essential ingredient for weight management and energy support. Clinical research shows that LCLT supplementation enhances fatty acid oxidation, helping to optimize body composition when combined with exercise.
2. Boost Exercise Performance & Endurance
LCLT is uniquely suited for athletes and fitness enthusiasts, as it reduces muscle glycogen consumption and delays lactic acid buildup — two key factors that limit endurance during high-intensity exercise. Chronic supplementation (2-2.72 g/day for 9-24 weeks) has been shown to improve work capacity, peak power, and reduce perceived exertion (RPE) during intense training, while acute doses (3-4 g 60-90 minutes before exercise) enhance performance in all-out effort tests. Long-term use can also increase VO₂max (maximal oxygen uptake) by 6-8% in endurance athletes, extending exercise time by 15-20%.
3. Speed Up Muscle Recovery & Reduce Soreness
A randomized, double-blind, placebo-controlled trial found that daily LCLT supplementation for 5 weeks significantly improved perceived recovery, reduced muscle soreness, and lowered serum creatine kinase (CK) — a key marker of muscle damage — across all age and gender groups. LCLT also increases blood flow and oxygen supply to muscles, reduces oxidative stress (by boosting superoxide dismutase levels), and protects mitochondrial function, helping athletes recover faster and train more frequently. In fact, supplementation can reduce exercise-related fatigue and soreness by up to 25% compared to a placebo.
4. Support Muscle Growth & Strength
For strength trainers and bodybuilders, LCLT supports muscle synthesis by upregulating androgen receptors (AR) and enhancing the effects of testosterone and IGF-1 — key hormones for muscle growth. It also inhibits matrix metalloproteinase 9 (MMP-9) activity, reducing tendon damage and supporting maximum strength gains of up to 12-18% with long-term use.
5. Versatile Health Benefits Beyond Fitness
Beyond sports nutrition, LCLT offers additional health benefits, including cardiovascular support (by maintaining mitochondrial function in cardiac muscle), improved insulin sensitivity, and support for healthy aging. It also aids in male fertility by supporting sperm energetics and may help manage metabolic syndrome symptoms.
LCLT vs. Other L-Carnitine Forms: A Clear Advantage
Not all L-Carnitine forms are created equal. LCLT outperforms other variants in key areas critical for formulation and effectiveness, making it the top choice for premium products:
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Feature
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L-Carnitine Tartrate (LCLT)
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Standard L-Carnitine (Base Form)
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Acetyl-L-Carnitine (ALCAR)
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Bioavailability
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High (15-18% oral absorption)
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Moderate (14-18% oral absorption)
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Moderate (crosses blood-brain barrier)
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Stability
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Excellent (non-hygroscopic, stable in all formulations)
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Poor (hygroscopic, prone to结块)
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Moderate (stable but targeted for cognitive use)
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Primary Use
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Sports nutrition, exercise recovery, weight management
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General supplementation, deficiency correction
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Cognitive support, brain health
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Formulation Versatility
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Ideal for tablets, capsules, powders, and liquids
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Best for liquids (prone to clumping in solids)
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Limited to specific cognitive formulations
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Recommended Dosage & Application
LCLT is well-tolerated with a favorable safety profile, and optimal dosages vary by application. We recommend the following guidelines for formulation:
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Sports Nutrition (Endurance/Strength Training): 1-3 g/day of LCLT (providing 0.68-2.04 g elemental L-Carnitine), split into 1-2 doses. For acute performance, 3-4 g 60-90 minutes before exercise; for chronic recovery, 2 g/day post-workout or with meals.
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Weight Management: 1-2 g/day of LCLT, taken 30-60 minutes before exercise or with a carbohydrate-containing meal to enhance absorption.
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General Health & Recovery: 500-1000 mg/day of LCLT, taken with meals for consistent absorption.
Safety Note: LCLT is safe for human consumption at recommended doses. Gastrointestinal discomfort (e.g., mild diarrhea, nausea) is rare and typically occurs only at doses exceeding 3 g/day. It is not recommended for individuals with severe renal impairment without medical supervision.
Our Commitment to Quality & Sustainability
We adhere to the highest manufacturing standards to ensure our LCLT meets global requirements. Our production process is sodium-cyanide-free, guaranteeing purity and safety, and our facilities are FSSC 22000 certified to prevent cross-contamination and ensure full traceability. We also comply with SEDEX requirements for sustainable supply chains, aligning with our mission to provide ethical, high-quality ingredients that support a healthier world.
All our LCLT products undergo rigorous third-party testing for purity, heavy metals, and microbial contamination, ensuring consistency and reliability for your formulations. As a trusted supplier with over 10 years of experience in exporting nutritional ingredients, we offer flexible packaging options (1kg, 25kg, or custom) and timely global delivery to meet your business needs.
Partner With Us for Your LCLT Needs
Whether you’re formulating sports supplements, weight management products, or functional foods, L-Carnitine Tartrate is the high-performance, science-backed ingredient your brand needs to stand out in the global market. Our team of experts is ready to provide technical support, custom formulations, and competitive pricing to help you bring innovative, high-quality products to market.
Contact us today to request a sample, learn more about our LCLT specifications, or discuss how we can support your business goals. Let’s collaborate to create products that empower consumers to live healthier, more active lives.