L-Theanine is a natural, functional free amino acid unique to green tea and currently stands as the most widely used and highly recognized natural ingredient for relaxation and calming in the global food, dietary supplement, and functional beverage industries. Unlike chemical sedatives or sleep aids, natural L-Theanine offers key advantages such as gentle neurological regulation, no drowsiness, no dependency, and no side effects; it is an essential ingredient for health products in the international market that aim to promote "relaxed alertness."
Our 99% high-purity L-Theanine powder is produced using a dual-process line combining advanced biosynthesis and natural extraction. The finished product boasts high purity, minimal impurities, and excellent batch-to-batch consistency. It fully complies with food-grade market access standards in regions including Europe, the Americas, Southeast Asia, the Middle East, and Australia, making it a best-selling functional food ingredient for export.
Detailed Basic Product Specifications
| Product Name | L-Theanine |
| CAS Number | 3081-61-6 |
| Molecular Formula | C₇H₁₄N₂O₃ |
| Molecular Weight | 154.16 |
| Assay Standard | ≥99.0% (via HPLC) |
| Appearance | Fine, pure white crystalline powder; uniform and translucent in color |
| Odor & Taste | Odorless; slightly sweet taste with a subtle, natural tea aroma |
| Solubility | Dissolves rapidly in both cold and hot water; fully soluble with no sediment, suspension, or layering |
| Particle Size | Customizable (80 mesh / 100 mesh / 120 mesh / 200 mesh) |
| Product Grade | Food grade, dietary supplement ingredient grade, export-specific grade |
| Compliance Standards | Meets FCC, USP, EP, E241, and national standards for new food ingredients |
| Key Features | Caffeine-free, hormone-free, sedative-free, and free from prohibited additives |
| Storage | Store in a cool, dry, and airtight place; protect from light and moisture |
| Shelf Life | 24 months |
Advantages of Raw Material Sourcing and Production Processes
Standard L-theanine products on the market often suffer from issues such as inconsistent purity, high residual caffeine, a tendency to clump, cloudy solutions, and significant color variations between batches. These problems can lead to failed quality inspections for finished products, product returns, and customs clearance delays for overseas clients.
Our export-grade L-theanine is produced using an advanced biosynthetic process combined with multi-stage recrystallization purification. By eschewing traditional high-temperature crude extraction methods, we eliminate impurity residues at the source:
1. Low-temperature synthesis and purification: This process preserves the natural biological activity and structural integrity of the L-theanine, resulting in an absorption rate far superior to that of standard extracted theanine.
2. Four-step precision filtration: Specialized processes remove impurities, caffeine, heavy metals, and residual solvents, ensuring the finished product is truly free of residual caffeine.
3. Multi-stage recrystallization: The resulting powder features a stable crystalline structure and uniform, fine particles; it remains resistant to moisture absorption, clumping, and discoloration over time.
4. Closed-system production in a Class 100,000 cleanroom: A sterile, dust-free environment prevents contamination by unwanted bacteria or microorganisms, meeting the rigorous export standards for premium health supplements.
5. Independent batch testing and retention: Strict controls ensure high consistency across batches regarding color, potency, and solubility, making the product ideal for clients requiring long-term, standardized mass production.
Whether intended for premium dietary supplements, imported functional beverages, nutritional products for mothers and infants, or high-end skincare formulations, this L-theanine meets the most demanding export standards.
Detailed Application Scenarios
Dietary Supplements
Sleep-soothing capsules, sleep gummies, stress-relief tablets, mood-balancing powders, focus supplements, nutritional powders for high-pressure workplace environments, brain-support nutrition for students, and calming nutritional products for the middle-aged and elderly.
Aligns with trending overseas categories: non-melatonin sleep support, stress relief, and focus & clarity product lines.
Functional Beverages and Drinks
Calming sparkling water, anti-fatigue functional water, soothing teas, balancing drinks to pair with coffee, sports recovery beverages, herbal calming oral solutions, and plant-based milk drinks.
Effectively counteracts the jitteriness and heart palpitations caused by caffeine and theophylline, creating healthy beverages that soothe, relieve stress, and are gentle on the body.
Snack Foods and Powder Mixes
Sleep-support chewable candies, calming chocolates, nutritional meal-replacement powders, pre-sleep drink mixes, compound amino acid powders, and nutritional products for calming children's moods.
Fits overseas consumer trends for functional snacks, wellness-oriented snacks, and "light wellness" routines.
Ingredients for Skincare and Oral Care
For use in soothing and repairing skincare products, antioxidant serums, "late-night recovery" formulas, skin-calming care products, and breath-freshening, soothing lozenges.
Offers excellent antioxidant properties, soothes skin stress, reduces redness, and helps stabilize skin condition.


Core Advantages of Export-Grade Products
High Purity, Reliable Data, Passes Third-Party Testing
Consistently high purity (>99%) with transparent HPLC data; every batch comes with a COA, detailed QC report, and reports on microbiology and heavy metals. Supports re-testing by SGS, FDA, or any third party with zero data deviation, ensuring trouble-free export inspections.
Caffeine-Free Formula, Highly Market-Adaptable
Completely decaffeinated with no stimulant residue; fully compliant for use in sleep aids, calming products, and anti-anxiety supplements. Suitable for a wider range of product categories than standard theanine.
Excellent Solubility and Premium Finished Product Appearance
Dissolves into a colorless, crystal-clear solution that does not alter beverage color, cause turbidity, or leave residue on container walls-making it the preferred ingredient for premium imported beverage brands. Features excellent powder flowability and uniform blending, ensuring smooth processing for tableting, confectionery, and filling lines.
Fully Certified for Export; Hassle-Free Customs Clearance
Complete export documentation provided: COA, SDS, QC reports, microbiology reports, certificates of origin, and customs declaration materials.
Complies with food ingredient import regulations in major markets across Europe, the Americas, Southeast Asia, the Middle East, and Latin America, allowing for direct, legitimate customs clearance without the risk of shipment seizure.
Stable Factory Stock, Fast Delivery, and Customization Options
Operates large-scale production lines with a consistent annual inventory of 10,000+ tons, ensuring stable supply during both off-peak and peak seasons with no risk of stockouts.
Supports small-batch trial orders, mixed-batch customization, particle size (mesh) specifications, private labeling, and OEM packaging to cater to everyone from cross-border small sellers to major brand clients.
Pure, Natural, and Safe; Aligns with Global Health Trends
Non-GMO, free from animal-derived ingredients, preservatives, artificial additives, and harsh chemicals. Vegan-friendly, safe, and gentle for long-term consumption; aligns perfectly with the global "Clean Label" trend.
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