Shaanxi Yuantai Biological Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of l-citrulline powder in China. With abundant experience, we warmly welcome you to wholesale bulk l-citrulline powder for sale here from our factory. Quality products and reasonable price are available.
What is L-citrulline?
L-Citrulline Powder is a non-protein synthetic amino acid. It was first isolated from watermelon juice, and watermelon remains a high-quality natural source of this amino acid. Unlike most amino acids involved in protein synthesis, L-Citrulline primarily participates in the urea cycle and arginine metabolism. Clinical studies have confirmed that L-citrulline supplementation can reduce post-exercise fatigue, accelerate ammonia clearance, improve erectile function, help lower blood pressure, and shows adjunctive therapeutic value in diseases such as heart failure and metabolic syndrome.

YTBIO supplies L-citrulline with 99% purity, strict control over heavy metals and impurities, stable content, and is suitable for formulations in sports nutrition, cardiovascular health, and men's health. It has complete certifications and flexible delivery options.
COA
| Item | Specifications | Test Results |
|---|---|---|
| Appearance | White crystals or crystalline powder | Conforms |
| Specific Rotation [α]D²⁰ | +24.5° ~ +26.8° | +25.4° |
| Identification | Meets the requirements | Conforms |
| Transmittance | ≥98.0% | 99.5% |
| Chloride (CL) | ≤0.020% | <0.020% |
| Ammonium (NH₄) | ≤0.020% | <0.020% |
| Sulfate (as SO₄) | ≤0.020% | <0.020% |
| Iron (Fe) | ≤10ppm | <10ppm |
| Heavy metals (Pb) | ≤10ppm | <10ppm |
| Arsenic (As₂O₃) | ≤1ppm | <1ppm |
| Loss on drying | ≤0.30% | 0.04% |
| Residue on ignition | ≤0.10% | 0.01% |
| Assay | 98.5%~101.0% | 99.7% |
| PH | 5.0~7.0 | 6.2 |
Benefits
One of the well-known benefits of L-citrulline is increased vasodilation. This is due to the transformation of L-citrulline after it is consumed. In the body, L-citrulline is converted to the amino acid arginine; arginine is then converted to the molecule nitric oxide (NO).
Nitric oxide causes vasodilation, which is the widening and relaxation of blood vessels to allow more blood to flow at a higher rate. This increased blood flow has many benefits in the body.
Increases Performance and Endurance
The increased vasodilation from consuming L-citrulline can have a huge impact on physical performance. Increased vasodilation leads to increased blood flow around the body and, more importantly, to the working muscles. This increased blood flow then allows for increased nutrient delivery as well as increased oxygen being delivered through the blood to those working muscles. Put all of this together and not only have you opened up the fuel line to your muscles, but you have gone from using unleaded 91 fuel to now using BP Ultimate 98 Octane!
Many studies have shown that when nitric oxide levels and vasodilation are increased, performance, strength, and endurance are all improved. Even though L-citrulline is converted into arginine in the body and then into nitric oxide; L-citrulline is a better supplementation option compared to arginine because the way the body processes and absorbs L-citrulline is far better than arginine.
Lowers Blood Pressure
Research has shown that supplementing with L-citrulline can reduce blood pressure levels in people with hypertension. Furthermore, they have also found that people with normal blood pressure have reduced blood pressure levels. Blood pressure levels have dropped by up to 16% after just 7 days of supplementing with L-citrulline.
Since not all studies have concluded with similar results, we can only assume that this reduction in blood pressure is related to increased vasodilation, which widens and relaxes blood vessels in the body.
Removes Harmful Compounds
Both L-citrulline and arginine are among the amino acids that play an important role in the urea cycle in the body. The urea cycle is responsible for converting highly toxic ammonia into urea, which is then excreted from the body.
Once converted, urea is then excreted from the body through our urine.
Maintains Muscle Mass
Although L-citrulline is an amino acid that is not used to build proteins directly; research has shown that it has the ability to increase protein synthesis. This increase in protein synthesis occurs in skeletal muscle through the body's mTOR pathway. In addition to the increase in muscle protein synthesis; L-citrulline is believed to have an amino acid sparing effect in the body.
By reducing the uptake of certain amino acids into the liver, the breakdown of these amino acids is prevented and levels are increased.
applications
L-citrulline has many important physiological functions, such as free radical scavenging, allogeneic rejection effect indicator, vasodilation, blood pressure stabilization, diagnosis of rheumatoid arthritis, antioxidant, etc.; in addition, it also has a very significant energy recovery effect and improve human immunity. In recent years, L-citrulline has received more and more attention in the fields of food, cosmetics and drugs, and has broad development and application prospects.

Medical and Health: Reduces cardiovascular risk; slows cell aging, reduces inflammation, and prolongs healthy lifespan; alleviates muscle fatigue and promotes post-exercise recovery.
Food and Beverage: Used as a nutritional supplement and flavoring ingredient.
Agriculture: Participates in plant nitrogen metabolism, promoting cell division and growth.
Others: Used as a food and feed ingredient, and as an intermediate in organic synthesis.
Company Introduction And Certificates Obtained
YTBIO mainly supplies L-Citrulline Powder etc. The company was established in 2014 and has many years of R&D and production experience. We are committed to the research and development, production and sales of raw materials for the 21st century health industry. The certificates obtained so far include ISO9001, ISO22000, HALAL, KOSHER, HACCP, FDA,etc. We always maintain the highest requirements for product quality.

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