Bulk L-Theanine Powder
Active Ingredient: L-Theanine
Purity Specification: 98%
Country of Origin: China
Detection Method: High-Performance Liquid Chromatography (HPLC)
Appearance: White to Off-White Powder
Solubility: Freely Soluble in Water
Relevant Certifications: ISO9001, GMP, FDA, Kosher, Halal
Trade Terms: EXW, FOB, CFR, CIF, DAP, DDP
Payment Method: T/T (Bank Transfer) Preferred
Shipping Methods: Air Freight, Sea Freight, Railway Transportation
Services Provided: Private Label Manufacturing (OEM) / Original Design Manufacturing (ODM)
Delivery Status: Sufficient Stock, Safe and Fast Delivery
Packaging Specifications: 10 kg, 20 kg
Minimum Order Quantity (MOQ): 1 kg
- Product Description
Bulk L-Theanine Powder – Premium Grade Manufacturer & Supplier
Shaanxi Herbcosher Phychemistry Co., Ltd. in China produces Bulk L-Theanine Powder, a premium-grade synthetic amino acid component with 98% purity. A trusted provider with over 20 years of phytochemical competence, we synthesise this white to off-white powder using a controlled synthetic method to ensure consistent quality validated by HPLC. We are ISO9001, GMP, FDA, Kosher, and Halal certified. We have enough 10 kg and 20 kg packing and provide EXW, FOB, CFR, CIF, DAP, and DDP trading terms. With a minimum order quantity of 1 kilogram and speedy air, sea, or railway delivery, we help major manufacturers and new businesses worldwide.

What is Bulk L-Theanine Powder?
Theanine, a non-protein amino acid, is found in green tea leaves. One of tea's most distinctive bioactive components, it's popular in functional ingredient markets worldwide. Traditional extraction processes are less consistent and pure than synthetic manufacture. Excellent water solubility makes the powder useful for many formulations. Due to its plant-based origin and exact molecular structure, this tea-derived amino acid meets consumer demand for natural-source functional additives.
Certificate of Analysis (COA)
| Parameter | Specification |
|---|---|
| Active Ingredient | L-Theanine |
| Purity | 98% (min.) |
| Appearance | White to Off-White Powder |
| Detection Method | HPLC |
| Solubility | Freely Soluble in Water |
| Country of Origin | China |
| Production Process | Synthetic Process |
| Certifications | ISO9001, GMP, FDA, Kosher, Halal |
| Packaging | 10 kg, 20 kg |
| MOQ | 1 kg |
| Shelf Life | 24 Months (Properly Stored) |
Bulk L-Theanine Powder Features
- Highly Purified Standard: At least 98% purity guarantees top-notch ingredients for complex formulas that need exact dose control.
- Highly Dissolvable: It dissolves easily in water and can be easily added to liquid drinks, ready-to-mix powders, and healthy drink mixes.
- Convenience of Synthetic Production: The controlled production process ensures uniform quality from batch to batch, unlike plant extraction, which can be unpredictable.
- Recognised as an amino acid that comes from tea, plant-based market positioning offers strong consumer appeal for natural functional ingredient products.
- Flexible Uses: It can be used for capsules, tablets, solid drinks, functional drinks, and complex nutritional blends.
- Protein-free amino acid structure with clear nutritional placing allows clear ingredient labelling.
Bulk L-Theanine Powder Applications
- Dietary Supplements: The main ingredient in capsules and tablets that are marketed to healthier lifestyle and wellness markets.
- Perfect for ready-to-drink drinks, energy drinks, and tea-based useful drinks that need ingredients that dissolve in water.
- Often mixed with caffeine, magnesium, and B vitamins in pre-workout and healing products.
- Health Food Products: Perfect for solid drink powders, healthy snacks, and meal replacement mixes.
- For the creation of multifunctional products, complex nutritional formulations work well with plant extracts, minerals, and vitamins.
- Original Tea-Derived Product Lines: Allows companies to make unique product lines using real tea-based materials.—-
Production Process
For pharmaceutical-grade purity and consistency, our Bulk L-Theanine Powder is made using a controlled synthetic process. Highly advanced extraction systems, cleaning technologies, and constant quality tracking are all built into the production line. For 98% pure requirements, each batch goes through strict HPLC testing. Our facility has ISO9001 and GMP certifications, and you can follow the supply chain from where the raw materials come from to where they are packaged. Using this methodical technique gets rid of common contaminants and makes sure that our product meets US and EU legal standards, so it can be sold in the two countries' markets.
Why Choose Us?
With more than 20 years of experience in both study and production, Shaanxi Herbcosher Phychemistry Co., Ltd. By keeping strategic relationships with Northwest A&F University and Northwest University, we can make sure that professional excellence and new ideas are always being explored. We guarantee that our 4,000–5,000 m² warehouse will have enough stock and that delivery will be quick, within 15 working days. Additionally, we offer flexible OEM/ODM services, which may include creating unique mixtures in powder, liposome, and microcapsule forms. Our skilled research and development (R&D), technical, and sales teams help with everything, from making products to submitting orders. We guarantee consistent quality security and follow all global rules with certifications like FDA, ISO 9001, HACCP, HALAL, and Kosher.

Certification
- ISO 9001: Quality Management System
- GMP: Good Manufacturing Practice
- FDA: U.S. Food and Drug Administration Registered
- Kosher: Kosher Certification
- Halal: Halal Certification
- HACCP: Hazard Analysis Critical Control Point
- SGS Verified

OEM/ODM Services
We offer full private label and custom production services that are made to fit the needs of your business. Custom formulation development, a range of dosage forms (powder, capsule, tablet, liposome, microcapsule), personalised packaging design, and a quick turnaround time of just 15 working days are all part of the services. Reports from third-party testing are given to make sure compliance. Our flexible manufacturing options help your business grow, whether you need to customise a small batch or make a lot of things.

Packaging and Delivery
Standard packaging: 10 kg and 20 kg per drum, with food-safe plastic bags inside and fibre drums on the outside. You can get custom wrapping if you ask for it. We keep enough stock on hand to ship right away. We can deliver your goods by air, sea, or train, and our own operations management system and partnerships with global companies make this possible. Prices for goods can be EXW, FOB, CFR, CIF, DAP, or DDP. The best way to pay is by T/T (bank transfer).

FAQ
Q: Is L-Theanine derived from tea leaves?
A: Tea leaves naturally contain L-Theanine. The regulated synthetic process of our commercial product ensures greater purity and consistency than extraction.
Q: How does L-Theanine vary from other amino acids?
A: Human protein synthesis does not include L-Theanine. Unlike dietary amino acids, its structure and uses are unique.
Q: What products is L-Theanine suitable for?
A: Dietary supplements, functional drinks, nutritious meals, sports nutrition, and complex functional formulations utilise it most.
Q: What is a conventional formulation development dose?
A: Depending on product positioning and desired use, 100–200 mg per serving is effective.
Q: Can you give samples?
A: Quality assessment samples are available. Contact our sales team for sample requests and specs.
Contact Us
For product inquiries, technical specifications, or custom formulation support, please reach out to our team at info@herbcosher.com regarding Bulk L-Theanine Powder. We're ready to support your next project.




