Sample: Available
Appearance: White crystalline powder
Delivery: within 3 days after payment
Certifications: ISO, HACCP, HALAL, KOSHER
Foil bag: 1-10kg; Drum: 20,25kg
- Product Description
L Theanine Bulk Powder: Premium Cognitive Support Ingredient
Xi'an Linnas Biotech Co., Ltd. manufactures pharmaceutical-grade L Theanine Bulk Powder at 99% purity, fulfilling strict quality requirements for the functional beverage and nutraceutical industries worldwide. Our product, which is a standardized version of N-gamma-glutamylethylamide derived from Camellia sinensis, is intended to facilitate alpha-wave formation and cross the blood-brain barrier. Our production plant, which has ISO 9001, HACCP, Halal, and Kosher certifications, uses automated manufacturing lines and sophisticated analytical testing to guaranty batch-to-batch uniformity. Samples are available for formulation testing, and delivery is finished within three days of payment confirmation. The main component of nootropic pills, functional drinks, and sleep aid formulas is this industrial-grade amino acid.
Product Specifications
|
Parameter |
Specification |
|
Purity |
99% |
|
Appearance |
White crystalline powder |
|
Melting Point |
217°C – 218°C |
|
Specific Rotation [α]20/D |
+7.7° to +8.5° |
|
pH Stability |
3.0 – 6.0 |
|
Thermal Resistance |
Up to 121°C (30 minutes) |
|
Certifications |
ISO 9001, HACCP, Halal, Kosher |
|
Sample Availability |
Yes |
|
Lead Time |
Within 3 days after payment |

What Is L Theanine and Why It Matters
The rare amino acid theanine is nearly entirely present in tea leaves, especially green tea. L-theanine is a neuromodulator, in contrast to typical amino acids used in protein synthesis.
It is perfect for formulations aimed at stress management and cognitive performance because it encourages relaxation without making you feel sleepy. The enantiomeric purity of the L-isomer is crucial for manufacturers since only the L-form has bioactive properties, whereas the D-isomer produced in subpar synthesis is inert.
Our powder has a distinctive umami flavor. This characteristic offers substantial taste-masking benefits, successfully lowering the harshness of caffeine or herbal extracts in your recipes.
Key Technical Properties
Our powder has certain physical and chemical properties and appears as a white to off-white crystalline powder. Pharmaceutical-grade material is distinguished from subpar synthetic substitutes by its unique rotation range of +7.7° to +8.5°, which ensures enantiomeric purity.
For industrial applications, chemical stability is still crucial. The powder can tolerate high heat processing up to 121°C for 30 minutes and retain its structural integrity in acidic solutions (pH 3.0–6.0). It can be used with pasteurization and retort procedures in the production of beverages because of its heat resilience.
The powder in low-pH, carbonated energy drinks prevents precipitation and keeps its optical clarity over time. High-speed encapsulation for tablet and capsule production lines is supported by the bulk density and flowability properties.
Industrial Applications
Nootropic & E-Sports Supplements: L Theanine Bulk Powder is used by formulators in synergistic stacks with caffeine, usually in a 2:1 ratio. This combination improves focus, reaction time, and cognitive endurance for high-performance work conditions and competitive gaming while reducing anxiety and physiological jitters brought on by stimulants.
RTD Beverages with Functions: The powder is crucial for functional energy drinks and relaxing waters because of its hydrolysis resistance and optical clarity. It smoothes out energy curves and lessens heart rate variation spikes while lowering cortisol levels without sacrificing shelf-life stability or visual appeal.
Sleep Architecture Formulations: By lowering sympathetic nervous system hyperactivity, the powder aids in the transition to sleep when combined with GABA or magnesium bisglycinate in sleep-support matrices. It targets the GABAergic system to minimize mental chatter without morning grogginess or prescription sedative effects, in contrast to melatonin, which initiates hormonal sleep onset.

Why Choose Linnas as Your Supplier
Our manufacturing facility combines advanced analytical tools with automated production lines. From the selection of raw materials to the final inspection, every batch is subjected to thorough quality control, guaranteeing consistent purity and performance.
We offer full OEM and ODM solutions. Custom formulation creation, ingredient customisation, and private label production catered to your market needs are all supported by our technical staff.
We are aware of international regulatory standards thanks to our established partnerships in Europe, North America, Asia, and the Middle East. Our certificates satisfy clean-label market needs and streamline your import procedures.
Packaging Options
- Foil Bags: 1–10 kg for small-batch manufacture and trial production
- Fiber drums: 20 kg and 25 kg for activities on a commercial scale
During international shipping and storage, every packaging keeps the goods stable.

Frequently Asked Questions
Q: What is the required minimum order quantity?
A: To meet the needs of both trial orders and large-scale manufacturing, we provide a range of packaging solutions, from 1 kg foil packets to 20–25 kg drums.
Q: Can you offer technical assistance for the creation of formulations?
A: Yes. For your particular application, our team helps with formulation improvement, ingredient compatibility testing, and dosage recommendations.
Q: How can batch uniformity be guaranteed?
A: Using sophisticated chromatography and spectroscopy equipment, each production batch is subjected to particular rotation testing, purity analysis, and stability verification.
Q: Is your L Theanine appropriate for clean-label and vegan products?
A: Definitely. With certifications for Halal, Kosher, and organic compatibility, our plant-derived powder satisfies clean-label requirements.
Q: What paperwork is required for customs clearance?
A: For significant overseas markets, we provide comprehensive paperwork, such as Certificates of Analysis, compliance certificates, and regulatory support materials.
Partner With Linnas Today
Secure your supply of premium L Theanine Bulk Powder for your next formulation project. Contact our team at cathy@linnas.com.cn for samples, quotations, and technical specifications tailored to your manufacturing requirements.









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