L-Carnitine DC

L-Carnitine DC

L-Carnitine DC

L-Carnitine DC is a high-purity amino acid-like nutritional raw material. It is a white crystalline powder with good water solubility and stable properties. It can promote the transport and oxidation of fatty acids, assist in energy metabolism, and relieve fatigue. It is often used in sports nutrition, functional foods, and feed additives. With high purity and good safety, it has a wide range of applications..ZNCBIO is a professional L-Carnitine DC China supplier and manufacturer, we have rich experience for exporting. Please be sure to email us at info@zncbio.com when you have any demands.

CAS No.: 541-15-1

TYPE: JP GRADE & USP GRADE

BRAND: ZNCBIO

MOQ: 20 KGS

Introduction of L-Carnitine DC

L-Carnitine DC (Left-Cysteine Di-Carbonate) is a high-purity raw material of left-cysteine. It is a derivative of essential amino acids for the human body and is a high-purity nutritional raw material produced through biological fermentation technology. It has a stable structure, good water solubility, and high biological utilization rate. Its main functions include promoting fat metabolism, enhancing energy supply, alleviating exercise fatigue, and improving physical endurance. It is widely used in sports nutrition, functional foods, and feed additives fields.

It performs the core function of a “transporter for fatty acids” within the body. It can actively transport long-chain fatty acids from the cytoplasm to the mitochondrial matrix, enabling them to participate in the β-oxidation process and be broken down into ATP energy for the body’s utilization. This directly promotes the conversion of fat into energy. At the same time, it can transport toxic acyl compounds produced by metabolism out of the mitochondria, maintaining the stability of the intracellular environment, reducing lactate accumulation, delaying fatigue onset, and enhancing endurance and metabolic efficiency.

Basic Information of L-Carnitine DC

Test ItemSpecificationResult
AppearanceWhite or Off-white GranularWhite or Off-white Granular, Conforms
Assay≥ 96.0 %96.11%
Loss On Drying≤2.0%0.62%
Particle Size (20 mesh)NLT 90 % through 20 meshPASS
Particle Size (80 mesh)NMT 30 % through 80 meshPASS
Bulk Density≥ 0.5 g/ml0.04 g/ml
Heavy Metals≤ 10 ppm< 10 ppm
Arsenic≤ 1.0 ppm< 1.0 ppm
Lead≤ 2.0 ppm< 2.0 ppm
Cadmium≤ 1.0 ppm< 1.0 ppm
Mercury≤ 0.1 ppm< 0.1 ppm
Total Aerobic Count≤1000 CFU/g< 1000 Cfu/g
Yeast & Mold≤100 Cfu/g< 100 Cfu/g
SalmonellaNegativeNegative
E.ColiNegativeNegative

Function of L-Carnitine DC

1. Core Mechanism

Fatty acid “transport carrier”

Long-chain fatty acids cannot directly enter mitochondria for energy supply; they must be transported across the membrane by L-Carnitine. L-Carnitine DC acts as a key carrier, transporting fatty acids from the cytoplasm into the mitochondrial matrix, enabling β-oxidation and decomposition into ATP energy.

Eliminating metabolic waste

Transporting toxic acyl groups and excess metabolic products produced by cell metabolism out of the mitochondria to prevent accumulation and damage to cells, maintaining normal mitochondrial function.

Regulating energy balance

Optimizing the ratio of sugar and fat energy supply, reducing the rapid consumption of glycogen, and improving overall energy utilization efficiency.

2. Main Physiological Functions

Promoting fat metabolism, supporting weight management

Accelerating fat oxidation and decomposition, increasing the proportion of fat energy supply, and reducing fat accumulation.

Enhancing athletic performance, alleviating fatigue

Reducing lactate accumulation, delaying exercise fatigue, and enhancing endurance and recovery speed.

Protecting heart and muscle function

The heart and skeletal muscles highly rely on fat for energy supply. Adequate L-Carnitine can maintain the health of the myocardium and skeletal muscles.

Improving the body’s metabolic state

Improving mitochondrial efficiency, enhancing overall vitality, suitable for people with low metabolism and easy fatigue.

L-Carnitine 1
L-Carnitine 2

Application of L-Carnitine DC

L-Carnitine (commonly known as “vitamin BT” or “left carnitine”) has been recognized by multiple authoritative institutions worldwide (such as WHO, US FDA, EU EFSA, etc.) as a safe and multi-purpose nutrient due to its unique role in regulating fat metabolism. Its application areas are very extensive, mainly covering five sectors: sports nutrition, medical health, health food, special population nutrition, and the food industry.

Here is a detailed interpretation of the various application areas of L-Carnitine:

1. Sports nutrition (the most widely used application)

This is the most well-known application scenario of L-Carnitine, mainly serving fitness enthusiasts, athletes, and weight loss enthusiasts.

Core functions:

Promote fat oxidation: As the “fat acid transporter”, it helps long-chain fatty acids enter mitochondria for combustion, increasing the proportion of fat energy supply during exercise, thereby assisting in weight loss.

Enhance endurance and anti-fatigue: By optimizing energy metabolism, it saves glycogen consumption in muscles, delays the occurrence of exercise fatigue, and extends the duration of high-intensity exercise.

Accelerate recovery: Reduces markers of muscle damage (such as creatine kinase) caused by exercise, alleviates muscle soreness, and speeds up physical recovery.

Common product forms:

High-concentration L-Carnitine liquid (such as 10,000mg per bottle).

Pre-workout supplements (powder or capsules).

Ingredients added to energy gels and sports drinks.

2. Medical and pharmaceutical fields (prescription drugs and clinical treatment)

In medicine, L-Carnitine exists in the form of drugs (such as L-Carnitine injection/oral liquid), mainly used to treat specific metabolic diseases and complications.

Primary carnitine deficiency: This is a rare genetic metabolic disorder. Patients cannot synthesize or transport carnitine and must take supplements for life to prevent cardiomyopathy, hypoglycemia, and sudden death.

Patients undergoing hemodialysis: Renal failure patients lose a large amount of L-Carnitine during dialysis, leading to anemia, muscle weakness, arrhythmia, and hypotension. Supplementing L-Carnitine is a standard adjunctive treatment plan.

Male infertility: L-Carnitine has a high concentration in the epididymis and sperm, providing energy and antioxidation for sperm. It is commonly used in clinical treatment of asthenozoospermia and oligozoospermia to improve sperm vitality and quality.

Cardiovascular disease adjunctive treatment: Used for angina pectoris and post-myocardial infarction rehabilitation, helping heart muscle cells utilize fatty acids for energy supply, improving cardiac function.

Pyridoxal phosphate-induced hyperammonemia: Certain antiepileptic drugs can lead to carnitine deficiency and ammonia poisoning. Supplementing L-Carnitine is a detoxification measure.

3. Health food and weight management fields

For the general public’s health maintenance market, it focuses on daily metabolic regulation and body shape management.

Weight control: As the core component of non-prescription weight loss supplements, combined with diet control and exercise, it helps increase the basal metabolic rate.

Middle-aged and elderly health: As people age, the body’s ability to synthesize L-Carnitine decreases, leading to muscle loss (sarcopenia) and reduced energy. Supplementing L-Carnitine helps maintain muscle mass, improve cognitive function, and enhance vitality.

Diabetes management: Diabetic patients often have abnormal carnitine metabolism, and supplementation may help improve insulin sensitivity and neuropathy.

4. Special population nutrition enhancement (infants and pregnant women)

L-Carnitine is recognized as a conditional essential nutrient and is crucial for specific developmental stages.

Infant formula milk powder:

Infants (especially premature infants) have extremely weak self-synthesis ability and mainly rely on dairy intake.

Breast milk contains abundant L-Carnitine, while regular milk has a lower content. Therefore, various national standards (including China’s GB standards) mandate or recommend adding L-Carnitine to infant formula milk powder to support fat metabolism, brain development, and heart function. Pregnant woman’s nutrition: During pregnancy, the fetus requires a large amount of carnitine for its development. Adequate supplementation can help prevent pregnancy fatigue and support the development of the fetus’s nervous system.

L-Carnitine DC​ 1
L-Carnitine DC​ 2
L-Carnitine DC​ 3

Common Misconceptions about L-Carnitine

Misconception 1: “L-carnitine is a weight-loss drug”

Truth: It is a nutritional supplement (similar to vitamins), not a drug. For non-deficient populations (most people with normal diets), the additional supplementation’s effect on weight loss is controversial in scientific research. Some studies show weak or insignificant effects, unless under specific exercise intensity conditions.

Misconception 2: “The more you eat, the faster you lose weight”

Truth: The absorption of L-carnitine by the human body has an upper limit (usually about 2g in a single oral dose has the highest absorption rate, and excessive intake will be excreted through urine). Excessive intake may cause diarrhea, nausea, or changes in body odor (fishy smell).

Misconception 3: “Everyone is deficient in L-carnitine”

Truth: Only vegetarians, the elderly, patients with certain genetic metabolic diseases, or those with extreme malnutrition may be deficient. Red meat (beef, mutton) is a rich source of L-carnitine, and people who often eat meat usually do not lack it.

Misconception 4: The higher the dosage, the better the effect.

Excessive supplementation cannot be effectively utilized by the body and may also increase the burden on the digestive system, causing symptoms such as diarrhea and nausea. Reasonable and appropriate supplementation is necessary to ensure stable efficacy. 

Misconception 5: L-carnitine can cause excitement and insomnia.

The regular form of L-carnitine does not contain caffeine or stimulants, and at normal doses, it will not cause insomnia or palpitations. Such reactions are mostly due to the addition of other ingredients in the product. 

Misconception 6: Only weight loss requires L-carnitine

Its core value lies in energy metabolism and anti-fatigue. It is commonly used for enhancing exercise endurance, muscle recovery, and supporting heart health, and is not exclusive to weight loss.

Contact Details

SHANGHAI ZNCBIO

Contact Person: Mr. Archer ZHU

WhatsApp & Wechat: +86-177 1763 3275

Email: info@zncbio.com

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Precautions for L-Carnitine DC

1、Suitable for sports people, people in need of metabolic regulation, and feed nutrition additives. Pregnant, lactating women, infants, young children and people with special diseases should use it under professional guidance.

2、Follow the recommended dosage. Do not overdose, which may cause gastrointestinal discomfort such as diarrhea, bloating and nausea.

3、It is recommended to take before exercise or meals for better effects on energy metabolism and anti-fatigue.

4、Storage: Sealed and stored in a cool and dry place, protected from light, moisture and high temperature to maintain product stability.

5、This product can be used with sports nutrition and functional food formulas. It is not a substitute for drugs and shall not be used to treat any diseases.

6、Safety: As a raw material or nutritional supplement, it must be used in accordance with relevant laws, regulations and standards to ensure compliant application.

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