L-Theanine is a special non-protein amino acid mostly found in fresh tea leaves of Camellia sinensis. As a mainstream functional raw material for global nutraceutical production, it stands out from other calming ingredients for delivering relaxed mental status without heavy drowsiness, matching the demand of modern consumers who need stress relief while keeping clear focus.

Our L-Theanine is produced via standardized enzymatic synthesis and multi-stage recrystallization purification. The whole production process strictly controls impurity residues, removing irrelevant intermediate substances and retaining pure L-isomer only. Many low-grade theanine materials carry D-isomer impurities or excessive soluble residues, leading to unstable absorption effects in finished formulas. Our L-Theanine powder holds consistent high purity, uniform white crystal texture and neutral mild taste, easy to blend with various raw materials during formulation. All batches go through strict sorting and full chromatographic testing before packaging. No artificial sweeteners, anti-caking agents or extra fillers are added to the pure bulk powder.

Product Specifications

We supply multiple purity grades of L-Theanine and accept customized technical indicators to fit different finished product development. Every batch passes complete lab inspection following global food safety standards like USP and EFSA limits.

• Chemical Name: L-γ-Glutamylethylamide

• CAS Number: 3081-61-6

• Molecular Formula: C₇H₁₄N₂O₃

• Appearance: White to off-white fine crystalline powder

• Purity Standard: ≥98%, ≥99% L-Theanine (HPLC detection)

• Solubility: Fully water-soluble, high solubility in room-temperature water

• Particle Size: 80–120 mesh, adjustable particle fineness on request

• Available Certifications: ISO22000, GMP, Halal, Kosher, Non-GMO, Vegan, Gluten-Free

• Shelf Life: 24 months under sealed, cool and dry storage

Core Functions & Application Benefits

L-Theanine works by regulating natural neurotransmitter balance inside the human body, with mild and reliable wellness properties widely recognized by formulators worldwide.

• Calm Focus Without Drowsiness: Supports steady mental state amid busy work pressure, eases irritable feelings without causing sleepiness or brain fog.

• Balances Caffeine Stimulation: Reduces jittery, anxious side effects brought by caffeine, widely paired with caffeine for energy support formulas.

• Optimizes Night Rest State: Helps users enter relaxed mood before bedtime, supporting smoother falling asleep and steady sleep rhythm.

• Natural Antioxidant Support: Neutralizes excess free radicals and alleviates oxidative stress from long-term mental fatigue.

• Maintains Stable Mood Under Pressure: Helps the body respond gently to continuous stress factors for daily long-term wellness support.

Main Application Fields

Thanks to full water solubility, neutral flavor and high formulation compatibility, pure L-Theanine powder is widely used across global wellness industries:

1. Dietary Supplements: Calming capsules, focus tablets, sleep support softgels, compound stress relief herbal blends

2. Functional Food & Beverages: Relaxation solid drinks, tea premixes, energy gummies, bottled functional drinks

3. Daily Nutritional Snacks: Nutrient bars, protein powder, yogurt additive for mental wellness positioning

4. Cosmetic Raw Materials: Oral beauty supplements, antioxidant oral liquid formulas

5. Laboratory Research Materials: Standard amino acid reference samples for nutrition research and new product trials

Our Supplier Advantages

We operate standardized GMP production workshops with complete enzymatic synthesis and purification production lines, ensuring stable bulk supply for export orders all year round.

• Strict Raw Material Control: Raw production materials are non-GMO corn-derived; regular heavy metal, pesticide and residual solvent testing for every batch.

• Advanced Purification Craft: Multi-cycle recrystallization removes inactive D-theanine isomer, securing high bioavailability of pure L-form.

• Full Batch Inspection System: Each shipment completes HPLC purity test, microbial count, heavy metal and moisture detection before delivery.

• Customized Formulation Support: Adjustable mesh size, pre-mixed compound powder service and private-label packaging solutions available.

• Flexible Order Rules: Small trial orders starting at 1kg are acceptable. We provide full export documents including COA, MSDS, traceability reports for customs clearance.

Packaging & Storage Guidelines

• Standard Export Packaging: 1kg aluminum foil vacuum bag, 25kg food-grade fiber drum with inner plastic lining bag

• Storage Conditions: Store in cool, dry, dark and well-ventilated warehouse. Avoid direct sunlight, high temperature and humid air.

• Important Reminder: Seal tightly right after opening. L-Theanine crystal easily absorbs moisture; damp environment will cause caking and affect mixing performance.

FAQ

Q1: What is the difference between tea-extracted L-theanine and synthetic enzymatic L-theanine?
A1: Tea-extracted theanine has low yield and unstable purity, limited by tea leaf raw material quality. Our enzymatic synthetic L-theanine delivers stable ≥98% purity, consistent batch indicators and more competitive cost for large-scale finished product manufacturing. Both forms share identical molecular structure and physiological effects.

Q2: Can L-Theanine be mixed with herbal extracts like lemon balm or passionflower?
A2: Yes. L-Theanine has neutral taste and excellent compatibility. Many compound stress-relief and sleep-support formulas combine L-theanine with herbal extracts to enhance overall calming effects.

Q3: What is your minimum order quantity?
A3: MOQ starts at 1kg for sample testing. More favorable unit prices are available for bulk orders over 100kg.