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L Carnitine capsules(Carnitor) are a classic nutritional supplement designed to optimize energy metabolism and athletic performance. The core component, levocarnitine, acts as a "transporter" in mitochondria, specifically transporting long-chain fatty acids into the mitochondrial matrix for β-oxidation, thereby efficiently converting them into energy for exercise. This mechanism not only supports the preferential consumption of fat as fuel, aiding in body fat management, but also delays physical exhaustion during moderate to high-intensity exercise and promotes endurance performance.
For strict vegetarians or individuals with specific metabolic needs, it can effectively make up for insufficient dietary intake. The capsule form ensures ease of use and precise dosage, making it an ideal choice for fitness enthusiasts, those on a weight loss journey, and those seeking to enhance their daily vitality. In the realm of scientific nutrition strategies, it plays a crucial role in promoting fat burning and energy production.
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L-Carnitine COA
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| Certificate of Analysis | ||
| Compound name | L-Carnitine | |
| Grade | Pharmaceutical grade | |
| CAS No. | 541-15-1 | |
| Quantity | Customized | |
| Packaging standard | Customized | |
| Manufacturer | Shaanxi BLOOM TECH Co., Ltd | |
| Lot No. | 202601090088 | |
| MFG | Jan 9th 2026 | |
| EXP | Jan 8th 2029 | |
| Structure |
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| Item | Enterprise standard | Analysis result |
| Appearance | White or almost white powder | Conformed |
| Water content | ≤5.0% | 0.63% |
| Loss on drying | ≤1.0% | 0.25% |
| Heavy Metals | Pb≤0.5ppm | N.D. |
| As≤0.5ppm | N.D. | |
| Hg≤0.5ppm | N.D. | |
| Cd≤0.5ppm | N.D. | |
| Purity (HPLC) | ≥99.0% | 99.98% |
| Single impurity | <0.8% | 0.55% |
| Total microbial count | ≤750cfu/g | 96 |
| E. Coli | ≤2MPN/g | N.D. |
| Salmonella | N.D. | N.D. |
| Ethanol (by GC) | ≤5000ppm | 510ppm |
| Storage | Store in a sealed, dark, and dry place below +30°C | |
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| Chemical Formula | C7H15NO3 |
| Exact Mass | 161.11 |
| Molecular Weight | 161.2 |
| m/z | 161.11 (100.0%), 162.11 (7.6%) |
| Elemental Analysis | C, 52.16; H, 9.38; N, 8.69; O, 29.77 |

Liver disease
Basic Information
Carnitor is a kind of amino acid-like substance that exists naturally in the human body. Its main function is to promote the entry of fatty acids into mitochondria for β -oxidation, thereby converting them into energy. It plays a key role in energy metabolism, especially during long-term and high-intensity exercise, which can increase the oxidation rate of fat, reduce the consumption of glycogen and delay the occurrence of fatigue. L Carnitine capsules, as a dietary supplement, is widely used in areas such as weight loss, enhancing athletic performance, and improving heart health.

Potential Association with Liver diseases

The liver is an important metabolic organ in the human body, participating in the synthesis and decomposition of various substances. Carnitor is synthesized in the liver and transported to various tissues throughout the body through the bloodstream. For people with healthy livers, taking this capsule in moderation usually does not impose a burden on the liver. However, for patients with liver diseases, especially those with impaired liver function, the metabolism of carnitor may be affected, and it should be used with caution.
The potential benefits for liver diseases
Improving fat metabolism: Patients with liver diseases often have fat metabolism disorders, such as fatty liver. Carnitor may help reduce the accumulation of lipid in the liver by promoting the oxidation of fatty acids, thereby improving the symptoms of fatty liver.
Antioxidant effect: Carnitor has antioxidant properties and can protect cells from damage by free radicals. In liver diseases, oxidative stress is one of the important factors leading to hepatocyte damage. Supplementation of carnitor may help alleviate the damage of oxidative stress to the liver.

Regulating immune function: Carnitor is involved in many metabolic processes and plays a significant role in enhancing the human immune system. For patients with liver diseases, the regulation of immune function may help reduce inflammatory responses and promote liver repair.
Increasing the burden on the liver: For patients with impaired liver function, the metabolism of carnitor may be affected, leading to its accumulation in the body and thereby increasing the burden on the liver.
Drug interactions: Carnitor may interact with certain drugs, affecting their metabolism and therapeutic efficacy.For patients undergoing treatment for liver diseases, this capsule should be used under the guidance of a doctor to avoid the risks brought by drug interactions.
Individual differences: There are differences in the metabolic capacity of L-carnitine among different populations. Some people may be sensitive to L-carnitine and experience adverse reactions such as nausea, vomiting and diarrhea. For patients with liver diseases, due to the particularity of their physical conditions, more attention should be paid to the risks brought about by individual differences.

Sports Nutrition Field

In sports nutrition, L Carnitine capsules are widely used supplements by athletes and fitness enthusiasts, with core functions of enhancing exercise performance, delaying fatigue and accelerating post-exercise recovery. Its mechanism is closely associated with fatty acid metabolism and energy provision.
Enhancing exercise endurance is its primary application value. During physical activity, bodily energy is mainly derived from the oxidative decomposition of carbohydrates and fats.For prolonged moderate-to-low intensity exercise, fat oxidation can account for over 60% of total energy supply.
As a "transport carrier" for fatty acids, carnitor transports long-chain fatty acids into the mitochondrial matrix for oxidative decomposition and energy release.
This reduces carbohydrate consumption, prolongs exercise duration and boosts endurance. For endurance sports such as long-distance running, swimming and cycling, regular intake of it significantly improves exercise endurance, delays the onset of fatigue, and helps athletes maintain optimal performance during high-intensity training and competitions.

Delaying exercise fatigue and accelerating recovery are also important benefits.Physical exercise leads to massive accumulation of metabolic products such as lactic acid and free radicals in muscle cells, which cause flesh soreness and fatigue and impair exercise performance and recovery speed. Carnitor promotes lactic acid metabolism by transporting lactic acid to the liver for gluconeogenesis, reducing lactic acid accumulation and relieving flesh soreness.
Meanwhile, it scavenges excess free radicals, alleviates oxidative damage to muscle cells, accelerates flesh repair and shortens post-exercise recovery time. In addition, strenuous exercise depletes flesh energy reserves and increases carnitine loss. Supplementing with it rapidly replenishes muscular carnitine storage, restores flesh energy metabolism, minimizes flesh damage, prevents delayed onset flesh soreness, and enables athletes to return to training status faster.
Weight Management Field
In weight management, the product are mainly used for auxiliary fat loss. Its core principle is to promote lipid oxidative decomposition and reduce fat accumulation without affecting flesh mass, making it suitable for obese individuals and fitness enthusiasts aiming to reduce fat. It should be clearly recognized as merely an auxiliary measure and cannot replace dietary control and physical exercise.Carnitor itself does not have direct lipid-reducing effects. Instead, it accelerates lipid oxidation and converts lipid into available energy to reduce bodily fat deposition.It works best on the basis of a calorie deficit (calorie intake less than calorie consumption), which can remarkably improve fat loss efficiency.
For obese individuals, regular intake of it combined with calorie control and increased exercise accelerates fat metabolism, helps achieve weight loss goals faster, and avoids muscle loss and fatigue caused by lipid reduction. For fitness users, it accelerates fat breakdown while preserving flesh mass and assists in body shaping.
It is critical to emphasize the limitations of carnitor in lipid reduction. Without dietary control and physical activity, simple supplementation with it cannot produce obvious weight loss results, as calorie deficit is the core prerequisite for lipid decomposition, and carnitor only accelerates fat metabolism rather than altering the fundamental calorie balance.
The synthesis of L-carnitine is mainly categorized into three methods: chemical synthesis, microbial fermentation, and enzymatic transformation. Among them, chemical synthesis and microbial fermentation are the most commonly adopted in industrial production, while enzymatic transformation is primarily used for preparing high-purity products. The core ingredient L-carnitine in L Carnitine capsules is mostly synthesized via the above methods and then processed into capsule formulations.
Chemical Synthesis Method
It is currently the most widely applied industrial production method, featuring mature technological processes, short production cycles, high product yield and low fixed asset investment.
It is especially suitable for producing feed-grade and regular health-care grade carnitor, and serves as one of the main raw material sources for the product. Its core process involves chemically synthesizing DL-carnitine (a mixture of L-isomer and D-isomer), followed by resolution to obtain high-purity carnitor.
Two mainstream synthetic routes are available: one uses epichlorohydrin and trimethylamine as raw materials to first synthesize quaternary ammonium salt, then obtains carnitine hydrochloride via cyanation and hydrolysis, and finally refines into carnitor.
The other takes ethyl γ-bromoacetoacetate as the starting material, and synthesizes carnitor hydrochloride through reduction, quaternization and hydrolysis before further purification.
In addition, chiral raw material synthesis and asymmetric synthesis can directly produce carnitor without resolution, delivering higher purity. However, these methods feature complex processes and high costs, and are mainly used for manufacturing pharmaceutical-grade high-purity carnitor.
Microbial Fermentation Method
This is an eco-friendly green synthesis approach. Microorganisms capable of producing carnitor (such as Aspergillus, Rhizopus, Escherichia coli, Proteus, etc.) are cultivated in optimized media containing glucose, soybean meal, inorganic salts and other nutrients.
Carnitor is synthesized through microbial metabolism and subsequently isolated and purified into high-purity products. Its advantages include natural carnitor with high biological activity, superior safety, and no residual impurities from chemical resolution, making it ideal for pharmaceutical-grade and high-end health-care grade it.
Its disadvantages are longer production cycles, relatively lower yield and higher costs, limiting its current application to high-value-added products. For example, inoculating Aspergillus into a medium with glucose and soybean meal and culturing at 28℃ for 6 to 8 days yields a certain amount of carnitor hydrochloride. Solid-state fermentation with Rhizopus and Penicillium cultured at 25℃ for 4 to 7 days can also produce carnitor.
Enzymatic Transformation Method
This method is mainly applied to the preparation of high-purity carnitor. It utilizes specific enzymes such as amidase, nitrilase and esterase to selectively resolve DL-carnitine derivatives, remove D-carnitine derivatives, and generate high-purity carnitor via hydrolysis.
It boasts high resolution efficiency, superior product purity, mild reaction conditions and environmental friendliness. Nevertheless, high enzyme costs and complex preparation processes restrict its large-scale industrial application, and it is currently confined to laboratory research and high-end product manufacturing.
In industrial production, synthesized carnitor undergoes refining and drying to form high-purity carnitor powder. The powder is then evenly blended with suitable excipients such as starch and lactose, and filled into capsule shells to manufacture it.
The finished product features accurate dosage, convenient administration and high bioavailability, meeting application demands across multiple fields.
FAQ
What is taking L-carnitine good for?
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Carnitor is an amino acid derivative that transports fatty acids into cells' mitochondria to be burned for energy, with key benefits including improved heart health, enhanced exercise recovery, and potential weight management. It is generally safe at doses of 2 grams or less daily and may benefit those with low natural levels, such as older adults or those with specific health conditions.
Does L-carnitine lose belly fat?
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Some research suggests that carnitor may reduce body weight, BMI, and belly fat in people with polycystic ovary syndrome (PCOS). If you're pregnant or have recently delivered, consider speaking with a doctor about your carnitine levels. People who are pregnant have a higher risk of carnitine deficiency.
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