Product Description
Our L-Theanine Capsules are premium, natural dietary supplements designed to support daily relaxation, mental clarity, and steady mood. Extracted from pure natural green tea sources, L-theanine is a well-known gentle amino acid that helps ease daily stress without causing drowsiness, making it suitable for long-term daily health maintenance for modern busy adults.
Supports Calm & Relaxed Mood – Effectively relieves daily stress, tension and anxious feelings caused by work pressure, study fatigue and busy schedules, helping you stay calm all day long.
Enhances Mental Focus – Different from sedative ingredients, L-theanine relaxes the mind while keeping brain clarity, improving concentration and work efficiency.
Improves Night Rest Quality – Regulates nervous tension, helps ease restless mood before bedtime, supports easier falling asleep and gentle night rest without daytime drowsiness.
Natural & Gentle Formula – Adopts pure natural tea extract formula, no harsh stimulants, no jittery feeling, safe for daily continuous use.

COA
| Test Items | Specification | Test Result |
|---|---|---|
|
Appearance |
White/transparent hard capsule, uniform fill |
Complies |
|
Odor & Taste |
Slight tea flavor, no peculiar/irritant taste |
Complies |
|
L-Theanine Purity |
≥99.0% |
99.2% |
|
L-Theanine Content |
Meet labeled value ±10% |
Complies |
|
Menthol |
Not Detected |
Not Detected |
|
Lead (Pb) |
≤2.0 mg/kg |
Complies |
|
Arsenic (As) |
≤1.0 mg/kg |
Complies |
|
Cadmium (Cd) |
≤0.3 mg/kg |
Complies |
|
Mercury (Hg) |
≤0.1 mg/kg |
Complies |
|
Residual Solvents |
Food grade compliant |
Complies |
|
Total Plate Count |
≤1000 CFU/g |
Complies |
|
Yeast & Mold |
≤100 CFU/g |
Complies |
|
E. Coli / Salmonella |
Negative |
Negative |
Functions and Effects
L-Theanine is a natural amino acid extracted from green tea. It effectively alleviates daily mental stress, nervous tension and irritable mood caused by work fatigue, study pressure and long-term busy life, helping the body and mind stay relaxed all day.
Different from sedative ingredients that cause drowsiness, L-Theanine gently calms the nerves while maintaining clear brain status. It effectively boosts concentration, improves work and learning efficiency, and avoids brain fog and fatigue.
It regulates excessive nerve excitement, relieves pre-sleep anxiety and restlessness. It helps users fall asleep easier and enjoy mild, high-quality rest without causing daytime drowsiness or dependency.
Long-term supplementation helps stabilize mood fluctuations, relieve intermittent anxiety and tension, and maintain a positive and steady mental state for modern high-stress groups.

Application Fields
Suitable for people who face long-hour work, heavy workload, frequent overtime and workplace pressure. It helps relieve mental fatigue, stabilize tense mood, and maintain efficient and focused working status throughout the day.
Ideal for students suffering from study pressure, brain fatigue and distracted attention during long-term learning and exam preparation. It supports mental clarity, improves learning efficiency, and eases exam anxiety.
Applicable to people who are prone to irritability, mood swings and mental tension due to fast-paced life, social pressure and long-term mental exhaustion, assisting in daily emotional management.
Perfect for groups with restless mood before bedtime, difficulty falling asleep and shallow sleep caused by nervous tension.

Business Scope

Packaging And Transportation Methods

Certificationss

FAQ
Our address
No. 56, Jinye 1st Road, Hi-Tech Zone, Xi'an,Shaanxi Province, China
Phone Number
17392201945
dennis06@xaltbio.com

Hot Tags: l-theanine capsule, China l-theanine capsule manufacturers, suppliers, factory