Latin Name: Camellia sinensis
CAS No.: 3081-61-6
Specification: 98%
Appearance: White to off-white powder
Solubility: Soluble in water
Test Method: HPLC
Sample: 10-50g Sample For free
MOQ: 1 kg
Certificates: ISO22000, Kosher, Halal, EU, USDA, HACCP, FSSC 22000, Organic,FDA
OEM Service: Private label and Customized package
Shelf life: 2 year,Available In Bulk, Private Label/OEM, Individually Packaged Goods
Not for private sale
Botanical Cube is an integrated manufacturer and exporter of L-theanine powder, supplying global customers with high-quality ingredients for dietary supplements, functional foods, and beverage applications. We provide bulk L-Theanine Powder supply, OEM services, private label support, and customized formulation options to meet different market requirements.
From raw material sourcing to finished product testing, we maintain strict quality control throughout the manufacturing process to ensure consistent product quality, stable supply, and reliable support for long-term partnerships.





| ITEM | SPECIFICATION | RESULT | TEST METHOD |
|---|---|---|---|
| Physical Description | |||
| Appearance | White to off-white powder | Conforms | Visual |
| Odor | Characteristic | Conforms | Organoleptic |
| Taste | Characteristic | Conforms | Olfactory |
| Bulk Density | Slack Density | 0.57g/ml | USP616 |
| Tight Density | 0.80g/ml | USP616 | |
| Particle Size | 95%-99% Through 80 Mesh | Conforms | CP2020 |
| Chemical Tests | |||
| Assay | ≥98% | 99.80% | HPLC |
| Moisture | ≤1.0% | 0.80% | CP2020 (105 oC, 4 h) |
| Ash | ≤1.0 % | 0.67% | CP2020 |
| Microbiology Control | |||
| Aerobic Bacterial Count | ≤1,000 cfu/g | Conforms | GB4789.2 |
| Total Yeast & Mold | ≤100 cfu/g | Conforms | GB4789.15 |
| Escherichia Coli | Negative | Conforms | GB4789.38 |
| Salmonella | Negative | Conforms | GB4789.4 |
| Staphylococcus Aureus | Negative | Conforms | GB4789.10 |
| Conclusion | Conforms to Specification | ||

Used in capsules, tablets, gummies, and powder blends for relaxation, stress support, sleep wellness, and cognitive health products. It can be combined with ingredients such as magnesium, GABA, and botanical extracts.

Suitable for energy drinks, wellness drinks, tea-based beverages, and drink mixes. Its mild taste and good solubility support easy formulation.

Commonly used in nootropic and brain health formulas to support focus and mental clarity, often combined with caffeine.

Applied in sleep support formulas, including gummies, capsules, and nighttime blends with ingredients such as melatonin, magnesium, and herbal extracts.

Added to gummies, nutrition bars, baked goods, and wellness foods for clean-label product development.

Used in sports and active lifestyle formulas to support energy balance, recovery, and mental performance.

Applied in pet supplements and animal nutrition products for relaxation support.

Get competitive pricing and expert support for your next product line. We offer flexible OEM services tailored to your brand.



A1: Each batch is tested for purity, safety, and microbiological quality to ensure consistent product standards.
A2: Yes. We supply bulk L-theanine pure powder for manufacturers, distributors, and supplement brands worldwide.
A3: We are an integrated manufacturer and exporter with our own production facilities and quality control system.
A4: Yes. We offer OEM services, including customized formulas, packaging, and private label solutions.
A5: We provide COA, specification sheets, MSDS, and other quality documents based on customer needs.
Just send email to info@botanicalsuppliers.com, or submit your requirement in bottom form, we are of service at any time!
If you have any questions, please contact our experts.We are always ready to help you with individual formulations, private label solutions or any other requirements to kick-start your brand!