L-citrulline Powder is a processed amino acid compound that is normally generated by the microbial fermentation of plant-based raw materials (corn or sugar substrate) and then purified and crystallized to give the end product of high purity. It presents itself as white to slightly off-white crystalline powder, soluble and stable, and the main active ingredient is the free-form amino acid L-citrulline. This compound is appreciated in matters of amino acid metabolism, and the compound is commonly added in sports nutrition formulations, functional foods, and dietary products production. It is also applied in some feed and industrial applications in which a specific amino acid profile is needed. The contemporary studies mainly include the efficiency of production, improvement of purity, and the behavior of production in complex nutritional systems, as it is currently of interest to the performance-nutrition industry and beyond the scope of functional formulations. As fermentation technology continues to develop and with more applications to be made, it has an excellent growth potential as industries seek to have further use of the product in the form of an amino acid with versatile applications and clean labeling.

Item | Specification | Result |
Identification | Conforms to standard | Conforms |
Assay (L-Citrulline) | ≥ 99.0% | 99.30% |
Appearance | White or almost white crystalline powder | Complies |
Odor | Characteristic, neutral | Complies |
Solubility | Freely soluble in water | Complies |
pH (1% solution) | 5.0 – 7.0 | 610.00% |
Specific Rotation | +22.0° to +25.0° | +23.4° |
Loss on Drying | ≤ 0.5% | 0.18% |
Residue on Ignition | ≤ 0.1% | 0.04% |
Heavy Metals | ≤ 10 ppm | <10 ppm |
Lead (Pb) | ≤ 1.0 ppm | <1.0 ppm |
Arsenic (As) | ≤ 1.0 ppm | <1.0 ppm |
Cadmium (Cd) | ≤ 1.0 ppm | <1.0 ppm |
Mercury (Hg) | ≤ 0.1 ppm | <0.1 ppm |
Mesh Size | 100% pass 40 mesh | Complies |
Total Plate Count | ≤ 1,000 cfu/g | <100 cfu/g |
Yeast & Mold | ≤ 100 cfu/g | <10 cfu/g |
E. coli | Negative | Negative |
Salmonella | Negative | Negative |
1. Amino Acid Support
L-citrulline has been beneficial in the overall amino acid balance and has frequently been found in compounds aimed at metabolic pathways regarding performance and endurance.
2. Exercise Formulation Ingredient
It is often used in sports nutrition supplements since it is compatible with other performance-enhancing substances and it is not affected by other substances in pre-workout formulas.
3. Versatile Solubility
It is also a good solvent and hence can be used in powdered drinks, capsules, and functional beverages, thereby enabling makers of products to develop various product formats.
4. Functional Food Enhancement
It can be added to fortified food such that it is used to increase the amino acid composition without causing any significant change in flavor properties.
5. Research Interest
It still remains in the spotlight of the study of nutrition science and sports formulation research, leading to sustained innovation in product development.

1. Sports Nutrition Industry
Frequently used in the pre-workout blends, endurance formulas or amino acid complexes because of its functional competency with performance-oriented ingredients.
2. Functional Food and Beverage Manufacturing
Applied in fortified beverages, powdered mixtures and specialised nutrition products which involve constant and extremely soluble amino acid constituents.
3. Dietary Supplement Production
Embarked into capsules, tablets and personalised amino acid formulations intended to be used in general wellness and active lifestyle products.
4. Animal Nutrition Sector
Included in some feeds, mixtures to aid in amplifying the amino acid ratios to meet particular species and growth demands.
5. Research and Industrial Applications
Pure L-citrulline Powder is applied in experimental research and ingredient development, and also in industrial biochemical reactions where purified amino acids are needed.


With 15 years of professional experience, we pay much attention to reliable production and personalised orders. Our OEM and ODM offerings enable partners to customise specifications, packages, and formulation needs to fit the distinctive market objectives. With consistent sourcing of raw materials, contemporary production, and stringent quality control, we are able to produce it that fulfil the demands of world nutrition, food, and supplement brands. We offer a professional partner experience to companies that want a long-term amino acid supplier with good supply support, rapid responsiveness, and effective communication with the company.
Our production and inspection process strictly maintains the batch-to-batch standards to deliver you the best performance of ingredients in different formulations. Our pricing model is aimed at ensuring our long-term competitiveness, which would provide reliable value without compromising on quality. Through a team of dedicated service that is focused on transparent updates, timely coordination, and responsive support, we ensure that your sourcing process is efficient, effective, and in line with your project requirements.
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