L-Theanine Capsules (1 box and 1 bottle)
L-Theanine Capsules (bottle of 60 capsules)
L-Theanine Capsules (box of bottle)
L-Theanine Capsules (1 box and 1 bottle)
L-Theanine Capsules (bottle of 60 capsules)
L-Theanine Capsules (box of bottle)
*Packaging color may differ according to distribution region.

L-Theanine Capsules

AdvaLife™ L-Theanine
L-Theanine Capsules are a stress relief supplement for improved response to anxiety and mental awareness. This L-theanine supplement is produced in ISO and HACCP-approved facilities by AdvaCare Pharma.



Per Serving: L-Theanine: 100mg (Serving Size: 1 capsule)

Pack Size


What are L-Theanine Capsules?

L-Theanine Capsules are a dietary supplement that contains the amino acid L-theanine, which is found in green tea leaves and is known for its calming and relaxing effects. Studies show that L-Theanine helps increase alpha brain wave activity, thereby promoting relaxation and mental alertness.

AdvaCare Pharma's L-Theanine Capsules are manufactured under strict ISO/HACCP guidelines at certified locations in both the USA, China and India – ensuring conformity with industry standards for health, safety, and environmental protection. We guarantee premium quality theanine supplements by conducting a strict vetting process for all our suppliers.

Why are we a quality L-Theanine Capsules manufacturer?

AdvaCare Pharma USA is a leading manufacturer of L-Theanine Capsules. Our commitment to quality is demonstrated through our HACCP/ISO certification.

Our AdvaLife™ brand believes in supporting our distributors' success by providing superior supplements that meet ISO 22000, 9001 & HACCP standards. Our premium-grade L-theanine supplements are trusted by healthcare professionals worldwide, making our supplement distributors industry leaders. We ensure that our L-theanine supplements are both safe and effective.


L-Theanine is an amino acid that is commonly found in green tea leaves. It is known for its ability to promote relaxation and reduce stress without causing drowsiness.

L-Theanine is believed to have a positive impact on mood, cognitive function, and sleep quality. Research has suggested that it can improve attention and reaction time, while reducing mental and physical stress.

Additionally, studies demonstrate its ability to affect alpha brain wave activity, leading to relaxation and a calm mental state. As a result, it is often used in supplements and functional foods to promote a sense of relaxation and improve cognitive performance.


What are L-Theanine Capsules used for?

How are L-Theanine Capsules used?

This supplement is to be swallowed with water, taken preferably with food. Do not take this product on an empty stomach.

What dose should be taken?

The recommended dosage is 1 capsule once or twice daily.

Do not exceed the recommended daily dose. A laxative effect may occur in case of overdose.


Taking L-Theanine Capsules, as with all dietary supplements, may lead to adverse effects.

Do NOT use L-Theanine Capsules if you:

  • are sensitive to L-theanine;
  • are taking medications;
  • have a pre-existing condition.

Talk to a medical professional before supplementing to see if this product will have any interactions with pharmaceutical products.

*Regulatory compliance may vary according to production standard, import requirements and/or manufacturing origin.

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Why AdvaCare Pharma?

As an industry leader, we are aware of our responsibility to provide affordable and sustainable solutions to improve healthcare worldwide.

High Quality Affordable Products
Globally Recognized Brands
Wide Product Range
Regulatory Affairs Expertise
Flexible Production Lines
Marketing & Logistics Support