L-theanine Capsule

L-theanine Capsule
Details
Product Name:L-theanine Capsule
Specification: ≥99% Purity
Appearance: White capsule
Main Function: Supports mental relaxation, relieves daily stress and nervous tension without drowsiness.
Promotes mental clarity, enhances focus and reduces brain fog under pressure.
Eases pre‑sleep restlessness, assists better night‑time rest, no morning grogginess.
Helps stabilize mood and ease irritability caused by fast‑paced modern life.
Offers gentle daily mental care for high‑stress adults, no stimulants added.
Category
OEM & ODM
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Product Details

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.

 

product-1728-2304

 

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.

 

 

product-1728-2304

 

 

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. 

 

 

 

 

product-1792-2240

Business Scope

 

 

0421001

 

Packaging And Transportation Methods

 

 

001

 

Certificationss

 

 

222

 

FAQ

 

 

Q1: Will L‑Theanine make me feel drowsy?
A1: No. L‑theanine delivers calming relaxation without sedative effect. It helps soothe tension and keeps mental clarity, and will not cause daytime sleepiness.
Q2: How many capsules should I take per day?
A2: The suggested serving is 1 capsule daily. You may take an extra capsule when under heavy stress. Do not exceed the recommended daily intake.
Q3: Can I take it before bedtime?
A3:Yes. It eases pre‑sleep nervousness and supports better rest. It is not a sleeping pill and will not lead to grogginess next morning.
Q4: Are there menthol or cooling ingredients inside this product?
A4: No menthol or cooling agents are added. Menthol is tested Not Detected in COA. Only pure L‑theanine and capsule excipients are used.
Q5: Can I take L‑Theanine together with other supplements?
A5: It is generally compatible with most daily health supplements. If you are taking prescription medicines, please consult your healthcare practitioner before use.
Q6: Who is not suitable for this L‑Theanine capsule?
A6:Not recommended for children, pregnant or breastfeeding women. People with underlying medical conditions should seek doctor's advice prior to consumption.
Q7: How long will I feel the calming effect after taking?
A7: Individual response varies. Most users notice mood‑soothing effects within 30‑60 minutes. For steady mental support, continuous daily use is suggested.
Q8: How should I store these capsules?
A8: Store in a cool, dry place, avoid direct sunlight and high humidity. Keep tightly sealed and out of reach of children.
How To Cooperate With Us?

Our address

No. 56, Jinye 1st Road, Hi-Tech Zone, Xi'an,Shaanxi   Province, China

Phone Number

17392201945

E-mail

dennis06@xaltbio.com

 

product-1145-330

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