Green Tea Extract L-theanine

Green Tea Extract L-Theanine | Natural Amino Acid Supplement | High-Purity 10%–99% HPLC

Shaanxi Hongda Phytochemistry Co., Ltd. offers Pharma-grade Green Tea Extract L-theanine (CAS 3081-61-6). It comes straight from the leaves of the Camellia sinensis that we raise on our own high-mountain tea farm. This Fine white powder is TOTALLY ORGANIC, HALAL, KOSHER, BRC, ISO9001 and ISO22000 certified and available in pure grades of 10% to 99% HPLC. Hongda provides proven natural products, clean label and batch traceable quality to B2B buyers in Europe, North America and Asia, with an annual production of 3,000 tons, delivery timeframes of 3-7 working days and full OEM/ODM assistance.

What Is Green Tea Extract L-Theanine?

L-Theanine is a non-proteinogenic amino acid, N-ethyl-L-glutamine, found almost exclusively in the leaves of Camellia sinensis. Within 30-40 minutes of ingestion, it crosses the blood-brain barrier, increasing alpha-brain wave activity, and produces a state of relaxed alertness without sedation.

Generic green tea extracts are commonly targeted at catechins or EGCG, while our extract is specifically targeted at high-purity L-theanine. So it’s the nootropic, stress-relief, and sleep-support active of choice in formulations that need a precise, quantifiable dose – typically 100 mg to 400 mg per serving.

It affects neurotransmitters including GABA, dopamine, and serotonin, which is why formulators use it to offset the “jitters” and increased blood pressure often associated with high-caffeine products.

Product Specification

Third-Party Testing & Quality Reports

Each batch is tested in-house, and by approved third-party agencies before to shipment. Our laboratory is SGS standardised with HPLC, GC, UV spectrophotometers and atomic absorption spectrophotometers,

Each batch of products is tested for:

• Purity & Identity: HPLC quantification of L-theanine concentration.

· Heavy Metal Poisoning Lead, Arsenic, Mercury, Cadmium

· Pesticide Residues: Multi residue screening as per EU and US requirements

· Microbiology: Total plate count, yeast, mould, E. coli, Salmonella

· Physical Properties: Moisture Content, Ash Content, Particle Size, Bulk Density

We also work with SGS and Eurofins for independent pesticide residue testing, natural origin statements, specific rotation testing and custom nutrition labelling.

Certificate of Analysis (COA)

Each production batch is provided with a complete COA including:

· Product name, batch number and date of manufacture

· L-theanine assay result (% by HPLC)

· Physical and chemical test data

Heavy metal and microbiological findings

Storage conditions and shelf life

COA documents are accessible on request. Custom COA formats can be prepared to fulfil regulatory or customer requirements.

Key Advantages

Natural Origin, Clean Label Ready

Directly from our own green tea plantation in the high mountains. This gives provable botanical traceability, an important benefit in comparison to biosynthetic L-theanine from bacterial fermentation or chemical synthesis.

Large purity range

From 10% to 99% HPLC for both cost sensitive functional food matrices and clinical grade supplement applications demanding ≥98% purity.

Great Stability in Formulations

Green Tea Extract L-theanine is entirely stable in acidic conditions as low as pH 3.0 and will not break down or precipitate out in carbonated beverages throughout a normal shelf life of 12 months. Grades of high purity (≥98%) give a clear colourless solution which does not alter the look of the beverage.

Low Flavour Impact

The neutral flavour profile enables for high dosages without impacting the taste of the finished product, an important practical consideration for clean-tasting aqueous drinks and functional gummies.

Application Areas

Nootropic & Energy Beverages

Added to "smart energy" drinks at a 1:2 or 2:1 caffeine:theanine ratio to lessen vasoconstriction and anxiety while preserving cognitive focus. Its acid stability ensures dependable performance in all carbonated formats at pH 3.5 and above.

Sleep & Stress Supplements (Gummies/Capsules)

It is stable through the high heat boiling slurry step of manufacture of gummies without deterioration. It is a non-sedative anxiolytic that provides an alternative to melatonin for the day-time relaxing market niche.

Functional Foods & Confectionery

Used in chocolate, functional chocolate, chewing gum. It is compatible with lipid matrices such as cocoa butter and hydrophilic gum bases making it ideal for mood-support and cortisol-management solutions.

Production Process

1. Raw Material Sourcing - Harvested leaves from our own managed high-mountain tea plantations

2. Hot Water Extraction – Selective extraction to extract L-theanine instead of polyphenols

3. Filtration & Purification – Multi-stage filtration and ion-exchange purification

4. Concentration – Vacuum concentration to remove solvent

5. Spray Drying - Produces uniform white fine powder with regulated particle size

6. Quality Testing – Full in-house and third-party testing per batch

7. Packing - Fibre drum with double layer of PE bag inside - 25kg/drum

Global Compliance

OEM / ODM Support

Shaanxi Hongda delivers one-to-one personalised product solution. If you require a particular purity grade, particle size or completed dosage form, our R&D team of 20+ professionals will design it for you.

Supported formats are:

· Powder: Tailor made purity 10% to 99%

· Capsules: Hard or soft capsule filling

· Tablets: Film coated or plain

· Pre-Mixed Blends: Enriched with caffeine, vitamins or adaptogenic ingredients

Packaging customisation available, including private label. Minimum order numbers are vary based on the spec.

Production Details

Why Choose Shaanxi Hongda?

· Own cultivation base – Full traceability of raw materials from leaf to powder

• 20,000 m² plant, 10+ production lines, 100,000 level Clean room

• 3,000 tons of annual output - Secure supply for high volume orders

• On-site equipment for SGS standard laboratory - HPLC, GC, UV, AAS

· Multi-certification – cGMP, FSSC22000, HALAL, KOSHER, BRC, ORGANIC (EU & NOP), ISO9001, ISO22000

• Fast delivery — typical orders delivered in 3-7 business days

· R&D depth – 2 R&D institutions with 20+ university level researchers

FAQ

Q1: What is the difference between natural L-theanine and synthetic L-theanine?

A: Pure L-isomer profile and confirmed botanical origin from natural L-theanine of green tea. Synthetic versions made by bacterial fermentation or ethylamine synthesis may contain D-isomers unless enzymatic control is employed which lowers biological activity.

Q2: Which purity grade is appropriate for beverage applications?

A: For clear RTD beverages, we recommend the use of ≥98% purity to minimise the mild amber hue generated by residual polyphenols present in lower purity classes (20%–40%).

Q3: Does L-theanine hold up in fizzy beverages?

A: Yes. It is stable in acid to pH 3.0, and will not precipitate or lose potency for a typical 12-month shelf life.

Q4: What is the recommended dose for cognitive benefits?

A: Industry data suggests 100mg to 200mg per serving to elicit detectable increases in alpha brain wave activity. Formulations for sleep support normally employ 200 mg to 400 mg.

Q5: Can Hongda give sample before mass order?

A: Yeah. Available in thickened PE inner bags with aluminium foil outside packaging, with 20-100 g samples.

Q6: What paperwork do you have to present for import compliance?

A: We have COA, MSDS, specification sheet, third party test results from SGS or Eurofins. Certificates of Natural Origin, Specific Optical Rotation Report and Nutrition Labels are available upon request.

Contact Us

Ready to source high-purity Green Tea Extract L-theanine for your next formulation? Send your inquiry to duke@hongdaherb.com.