Natural Field Co., Ltd. is one of the leading manufacturers and suppliers of pure l theanine powder in China. With abundant experience, we warmly welcome you to wholesale bulk discount pure l theanine powder from our factory. Quality products and reasonable price are available.
L-Theanine is a unique, non-protein amino acid naturally found in tea leaves (Camellia sinensis), widely recognized as a safe and effective ingredient for relaxation, mood balance, cognitive support, and sleep-quality improvement in the global dietary supplement and functional food industries.
Our L-Theanine Pure Powder is manufactured under strict quality control systems and tested by HPLC with an actual assay of 99.24%, fully complying with enterprise standards. It appears as a white or quasi-white crystalline powder with a clear, colorless solution.Our L-Theanine powder is 100% pure with no fillers, additives, or excipients, making it an ideal raw material for supplement brands, food manufacturers, and private label producers worldwide.
Product Specification Sheet
|
Test Item |
Standard |
Test Result |
Test Method |
||
|
Assay |
98.0%–102.0% |
99.24% |
HPLC |
||
|
Appearance |
White or quasi-white crystalline powder |
Conforms |
Organoleptic |
||
|
Solution Clarity |
Clear and colorless |
Conforms |
- |
||
|
Loss on Drying |
≤1.0% |
0.10% |
GB 5009.3 |
||
|
Residue on Ignition |
≤0.2% |
0.04% |
GB 5009.4 |
||
|
pH |
4.5–6.0 |
5.58 |
- |
||
|
Chloride |
≤0.02% |
Conforms |
USP<221> |
||
|
Sulfates |
≤0.02% |
Conforms |
USP<221> |
||
|
Heavy Metals |
≤10ppm |
Conforms |
GB 5009.74 |
||
|
Total Plate Count |
≤1000cfu/g |
Conforms |
USP<2021> |
||
|
Yeast & Mould |
≤100cfu/g |
Conforms |
USP<2021> |
||
|
Coliforms |
Negative |
Negative |
USP<2022> |
||
|
Salmonella |
Negative/25g |
Negative |
USP<2022> |
||
|
Conclusion |
Conforms to Enterprise Standard |
- |
- |
||
|
Download COA |
To view detailed results and experimental data, you can click here to contact us for the full report. Download the Full | ||||
Key Benefits
High Purity & Stable AssayTested by HPLC, our L-Theanine powder achieves an assay of 99.24%, strictly within the standard range of 98.0%–102.0%, ensuring consistent formula efficacy and batch stability for large-scale production.
Excellent Physical & Processing PropertiesWhite or quasi-white crystalline powder with clear, colorless solution, good water solubility, stable pH, low moisture, and low residue. These characteristics ensure excellent flowability, uniform mixing, and reliable performance in capsules, tablets, powders, and functional beverages.
Full Traceability & DocumentationEach batch is accompanied by a complete, authentic COA report.
Application Scenarios
- Dietary Supplements
Relaxation capsules, mood-support tablets, sleep-improvement formulas, nootropic blends, calmness powders
- Functional Foods & Beverages
Nutrition powders, drink mixes, functional teas, energy drinks, healthy snacks
- Powder Blends
Amino acid complexes, anti-stress formulations, focus-enhancing premixes, sleep-support combinations
Available Forms & Customization
-
We provide standard white crystalline powder as the primary grade. Custom particle sizes and packaging options are available to improve flowability, mixing uniformity, capsule-filling efficiency, or tableting performance based on your production line requirements.
Why Choose Us
Full batch testing reports including assay, physical and chemical indicators, heavy metals, and microbiology
Complete COA, MSDS, and specification sheets for market registration and third-party audits
Customizable packaging, labeling, and inner materials for export customers
Stable supply chain to support trial orders and large-volume bulk orders
Full technical support for formulation optimization and production compatibility
FAQ
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