Greenherb supplies a premium, single-component Green Tea Extract standardized for L-Theanine, the primary amino acid responsible for tea's relaxing yet focusing properties. Our ingredient is meticulously produced to deliver high-purity L-Theanine, offering a clean-label, non-sedative solution for formulations targeting stress, cognitive function, and sleep quality. Designed for reliability, it meets the stringent demands of global supplement and functional food brands.
We provide flexible supply chains from pilot batches to full-scale production, ensuring consistent quality for your market needs.
High-Purity, Single-Ingredient Focus – Delivers standardized, high-content L-Theanine (typically >98%), not a broad-spectrum tea powder.
Clinically-Researched Calm & Focus – Supported by studies for promoting alpha brain waves associated with relaxed alertness and concentration.*
Non-Drowsy, Non-Habit Forming – Provides a clean, calm feeling without sedation, making it ideal for daytime use.
Excellent Solubility & Stability – Highly water-soluble powder integrates seamlessly into beverages, powders, and dissolvable formats.
Clean-Label & Allergen-Free – Derived from green tea, suitable for vegetarian/vegan formulations and broad consumer demographics.
Global Compliance Ready – Manufactured in a GMP facility with full documentation (COA, MSDS) for international market entry.
Dosing Efficiency – High purity allows for effective dosing in compact delivery forms like tablets, gummies, or single-serve stick packs.
Greenherb's Green Tea Extract L-Theanine is a specialized nutraceutical ingredient that isolates the beneficial amino acid L-Theanine from Camellia sinensis leaves. Unlike whole green tea extracts that contain caffeine and catechins, this purified extract offers targeted functionality for mental wellness and cognitive support. It is the ingredient of choice for brands creating scientifically-backed products in the fast-growing nootropics, calm focus, and sleep hygiene categories, where precise dosing and predictable effects are paramount.
Botanical Source: Camellia sinensis (L.) Kuntze (Green Tea)
Used Part: Leaf
Active Component: L-Theanine (Gamma-glutamylethylamide)
Standardization: Typically ≥98% L-Theanine by HPLC
Appearance: White to off-white fine crystalline powder
Solubility: Freely soluble in water, slightly soluble in ethanol.
Our production focuses on the selective isolation and purification of L-Theanine:
Source Selection: Sourcing of premium green tea leaves optimized for L-Theanine content.
Selective Extraction: Utilization of hot water or specific solvent systems to leach L-Theanine from the leaves.
Decaffeination & Purification: Removal of caffeine, catechins, and other tea components through advanced filtration, adsorption, and chromatographic separation techniques.
Crystallization & Refinement: The L-Theanine is crystallized and washed to achieve pharmaceutical-grade purity.
Drying & Milling: The crystals are gently dried and milled to a uniform, free-flowing powder.
Quality Certification: Every batch is verified via HPLC for potency, purity, and the absence of residual solvents or contaminants.
This high-purity extract is utilized for its well-documented benefits in supporting:
Relaxation Under Stress: Promotes a state of calm focus and helps mitigate feelings of stress without drowsiness.*
Cognitive Performance & Focus: May enhance attention, reaction time, and memory, especially when combined with caffeine.*
Sleep Quality Support: Can improve sleep quality by easing nervous tension and promoting relaxation before bedtime.*
Mood Balance: Contributes to overall emotional well-being and a balanced mood.*
Green Tea Extract L-Theanine is versatile for use in:
Dietary Supplements
Stress relief and relaxation capsules/tablets
Nootropic and brain health stacks (often paired with caffeine)
Sleep support formulas
Mood and mindfulness gummies or lozenges
Functional Foods & Beverages
Calming and focus-enhancing drinks, shots, and teas
Relaxation-oriented functional waters and sodas
Nutrition bars for sustained mental energy
Other Applications
Pet calming supplements
Cosmetic formulations targeting stress-related skin conditions
Greenherb is committed to being your trusted source for high-purity Green Tea Extract L-Theanine. We ensure product excellence, supply chain transparency, and provide the technical data needed for your successful product launches worldwide.
Reach out to us for specifications, free samples, and partnership discussions tailored to your project.
Greenherb — dedicated to delivering pure, effective botanical actives.
