United States Theanine Market to hit US$ 36.63 Million by 2031 | Top Companies - Taiyo International Inc., Witspower, Kyowa Hakko Bio Co., Ltd. | Exclusive report by DataM intelligence

Leander, Texas and Tokyo, Japan - Jan.19.2026
As per DataM intelligence research report "The Global Theanine Market reached US$ 65.50 million in 2023 and is expected to reach US$ 122.11 million by 2031, growing with a CAGR of 8.03% during the forecast period 2024-2031."

The theanine market is expanding as demand rises for natural, functional supplements that promote relaxation, focus, and cognitive health. Advanced extraction, high-purity formulations, and functional beverage integration enhance efficacy and consumer appeal. Growing awareness of mental wellness and nutraceutical products is fueling market growth globally.

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Theanine Market: Competitive Intelligence
Taiyo International Inc., Witspower, Kyowa Hakko Bio Co., Ltd., Taiyo Kagaku Co., Ltd., NutriScience Innovations, LLC

In the Theanine Market, Taiyo International Inc., Witspower, Kyowa Hakko Bio Co., Ltd., Taiyo Kagaku Co., Ltd., and NutriScience Innovations, LLC collectively support a growing global demand for this naturally derived amino acid known for cognitive support, stress modulation, and relaxation benefits. These companies supply high‐quality theanine ingredients and formulations that cater to dietary supplements, functional beverages, nutraceuticals, and sleep or focus‐oriented products, helping manufacturers meet consumer preferences for science‐backed, clean‐label health solutions. Their production capabilities and quality assurance systems help ensure ingredient consistency, regulatory compliance, and scalable supply, which are critical as interest in brain health and wellbeing continues to expand across regions. By aligning product integrity with formulation flexibility, they bolster the Theanine Market's ability to serve diverse end uses while supporting innovation in functional ingredient applications.

Individually and in combination, these firms' strengths enhance competitive differentiation and product breadth within the Theanine Market by blending fermentation expertise, global distribution, and application‐focused support. Taiyo International Inc. and Kyowa Hakko Bio Co., Ltd. contribute well‐established fermentation‐derived theanine sources that are trusted by formulators for purity and performance, reinforcing clinical and consumer confidence. Witspower and Taiyo Kagaku Co., Ltd. deliver tailored ingredient forms and processing capabilities that help brands integrate theanine into complex matrices such as ready‐to‐drink products and supplement blends. NutriScience Innovations, LLC adds value with market‐driven formulations and technical support that help customers optimize bioavailability and consumer appeal. Together, these companies advance the Theanine Market by expanding supply options, improving functional integration, and supporting product innovation that meets modern wellness trends focused on stress resilience, mental clarity, and holistic health outcomes.

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United States: Recent Industry Developments

✅ In January 2026, DSM Nutritional Products launched automated L-theanine production platforms with AI-enabled fermentation monitoring and robotics-assisted handling to ensure high purity, consistency, and yield for functional beverages and supplements.

✅ In November 2025, Ingredion invested $25 million in robotics-assisted L-theanine production systems with AI-based process analytics for scalable, high-quality output.

✅ In August 2025, Ajinomoto USA implemented automated extraction and purification workflows with AI monitoring and robotics for consistent L-theanine supplement manufacturing.

✅ In June 2025, Lonza deployed AI-assisted robotic L-theanine formulation and packaging lines to maintain batch consistency and high bioavailability.

Japan: Recent Industry Developments

✅ In January 2026, Ajinomoto Co., Ltd deployed AI-assisted automated L-theanine production lines, supported by $20 million investment, integrating robotics for fermentation, purification, and quality monitoring.

✅ In October 2025, Morinaga Milk Industry implemented automated AI-monitored production platforms for L-theanine to optimize yield and purity.

✅ In July 2025, Meiji Co., Ltd introduced robotics-assisted L-theanine manufacturing with AI analytics to ensure consistent quality and scalable output.

✅ In April 2025, Kyowa Hakko Bio deployed automated production workflows with AI monitoring and robotics to standardize L-theanine extraction and processing.

Segment Covered in the Theanine Market:
By Source
The market is segmented into green tea 55%, black tea 20%, mushrooms 15%, and others 10%, with green tea dominating due to high natural L-theanine content and widespread use in nutraceutical and functional beverage formulations. Black tea remains a stable source, while mushrooms are gaining attention for plant-based and alternative sourcing. Growing preference for natural and clean-label ingredients supports source diversification.

By Type
Types include L-theanine 90% and D-theanine 10%, with L-theanine dominating due to proven efficacy in stress reduction, cognitive enhancement, and relaxation without drowsiness. D-theanine has limited commercial use and is mainly applied in research and niche applications. Increasing clinical validation and consumer awareness drive L-theanine adoption.

By Application
Applications include dietary supplements 40%, functional beverages 30%, pharmaceuticals 15%, cosmetics 10%, and others 5%, with dietary supplements dominating due to rising demand for mental wellness, sleep support, and stress management products. Functional beverages are growing rapidly with demand for calming and focus-enhancing drinks. Pharmaceutical applications are expanding in neurological and anxiety-related therapies. Cosmetic use is emerging for anti-stress and skin-soothing formulations.

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Regional Analysis
Asia Pacific - 40% Share
Asia Pacific leads with 40% share driven by strong green tea consumption and production in China and Japan. Dietary supplements and functional beverages dominate applications. L-theanine is the primary type used. Established tea culture and export-oriented manufacturing support market growth.

North America - 25% Share
North America holds 25% share supported by growing demand for natural cognitive health and stress-relief supplements in the U.S. and Canada. Dietary supplements are the key application. Functional beverages show strong growth. Clean-label trends and lifestyle-related stress drive adoption.

Europe - 20% Share
Europe accounts for 20% share driven by nutraceutical adoption and functional food regulations in Germany, France, and the UK. Dietary supplements and functional beverages dominate demand. L-theanine is widely preferred. Preventive healthcare trends support steady growth.

Latin America - 10% Share
Latin America records 10% share with increasing awareness in Brazil and Mexico. Dietary supplements dominate applications. Green tea-derived theanine is widely used. Expanding health and wellness markets support adoption.

Middle East & Africa - 5% Share
Middle East & Africa holds 5% share with gradual adoption in UAE and South Africa. Dietary supplements and functional beverages lead demand. Rising awareness of stress management and wellness supports market expansion.

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✅ Live Market & Pricing Trends

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