Life Extension | L-Theanine | 60 Capsules


Life Extension | L-Theanine | 60 Capsules

Promotes a calming and mood-enhancing effect

The ingredients in L-Theanine can:

  • Encourage relaxation and well-being by helping to support a healthy stress response
  • Promote brainwave patterns similar to massage
  • Support production of gamma-aminobutyric acid, the neurotransmitter that influences levels of dopamine and serotonin

L-Theanine is an amino acid found in tea and has been shown in several studies to support calming effects by favorably modulating several aspects of brain activity.

Price is inclusive of 21% VAT

Product details "L-Theanine"


Theanine is an amino acid found in tea that has calming effects on your brain, by increasing levels of serotonin and dopamine and blocking the activation of glutamate receptors. 


Life Extension members can enjoy the benefits of this unique ingredient offered in a 100 mg supplement. This product causes no adverse reactions. The Japanese people add theanine to soft drinks and chewing gum to induce relaxation.


The calming mood-enhancing effect is achieved by promoting electrical brain activity commonly present when you are very relaxed, which literally sets you in a better mood.


What you can expect is relaxation and a sense of well-being. L-Theanine is a non-toxic, highly desirable mood regulator.


Beware of Imitations: There are different forms of L-theanine. Suntheanine is the only pure form that is protected by internationally recognised patents and proven in clinical studies to be safe to use. Independent laboratory analysis have identified products on the market that claim to contain L-theanine. 

In reality, they are half L-theanine or D-theanine, forms that have not been empirically studied.


Amount per serving 100mg


AlphaWave® L-Theanine


Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), silica, vegetable stearate.

AlphaWave® is a registered trademark of Ethical Naturals, Inc.



Dosage and use

  • Suggested daily intake is one (1) capsule, one to four times, with or without food, or as recommended by a medical practitioner.



  • Keep out of reach of children.
  • Do not exceed recommended daily dose.
  • Do not purchase if outer seal is broken or damaged.
  • If you are undergoing treatment for a medical condition or if you are pregnant or lactating, please consult your medical practitioner first.
  • A food supplement should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
  • Store tightly closed in a cool, dry place.