L-Theanine (high-purity tea amino acid) naturally derived relaxation support ingredient
L-Theanine Premium / Naturally derived high-purity functional amino acid raw material from tea leaves.
Natural tea amino acid L-theanine, ideal for stress relief, mind and body relaxation, and cognitive function support.
L-Theanine is a non-protein amino acid that is naturally found in tea leaves, and its chemical name is known as N-Ethyl-γ-L-glutamate. It possesses unique neuroactive properties and is widely recognized as a natural anti-anxiety component, promoting calmness and tranquility by directly acting on neurotransmitters in the brain. Furthermore, it does not induce drowsiness when taken, making it suitable for use in daily life and during work. Our L-Theanine is produced using high-quality tea leaf-derived raw materials, undergoing fermentation, purification, and drying processes, and is offered in a grade with excellent purity and stability. It is optimized for applications in food, functional foods, supplements, beverages, cosmetics, and nutritional products, and is adopted by B2B manufacturers and brands worldwide for stress relief, sleep improvement, and cognitive function enhancement. Since it is difficult for many people to consume sufficient L-Theanine through their regular diet, supplementing with this ingredient makes it possible to obtain its health benefits on a daily basis. Additionally, as a highly safe natural-derived component, it is manufactured under strict quality control, making it easy to incorporate into OEM/ODM products.
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basic information
Product Name: L-Theanine Chemical Name: N-Ethyl-γ-L-Glutamic Acid Source: Naturally derived amino acid from tea leaves Appearance: White to off-white crystalline powder Purity: High purity grade (lot analysis values available) Solubility: Water-soluble Taste & Aroma: Almost tasteless and odorless Characteristics: Supports relaxation of the mind and body Reduces stress and has anti-anxiety effects Improves sleep quality Supports cognitive function Naturally derived and highly safe Packaging: 1 kg / 5 kg aluminum bags (other capacities available upon request) Storage Conditions: Avoid high temperature and humidity, store in a sealed container.
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Applications/Examples of results
Main usage examples: Functional foods (relaxation, stress relief, sleep improvement) Health supplements and dietary supplements Beverages, powdered drinks, nutritional drinks Cosmetics and beauty supplements Incorporation into OEM/ODM products Adoption results: Widely adopted by domestic and international health food and functional food brands, as well as B2B manufacturers. It is extensively used in products aimed at stress relief, sleep improvement, and cognitive function support, particularly receiving high praise in the relaxation and concentration-enhancing supplement markets.
Company information
YOUCHANG INDUSTRIAL DEVELOPMENT CO., LTD is a specialized manufacturer of natural ingredients, focusing on herbal extracts and plant-derived extracts, and is a global company with strengths in international exports. We develop products that integrate traditional knowledge of Chinese medicine with biotechnology, catering to diverse industries such as pharmaceuticals, cosmetics, health foods, functional beverages, personal care, animal nutrition, and aromatherapy. Our main products include herbal extracts, fruit and vegetable powders, tea extracts, peptides, active pharmaceutical ingredients (APIs), natural flavors, essential oils, reed diffusers, and aroma candles. We utilize advanced extraction technologies such as supercritical CO₂ extraction, low-temperature vacuum concentration, membrane separation, and spray drying to achieve high purity and stability of components. We have obtained various international certifications including ISO, GMP, HACCP, HALAL, KOSHER, and organic certification, establishing a quality control and traceability system. We can accommodate both small batches and large-scale production. Through stable quality, competitive pricing, professional support, and sustainable sourcing of raw materials, we build trust with business partners around the world.










