What is L-theanine? Theanine is an amino acid found in tea. (1)

The calming effects and benefits of L-theanine 

Its benefits have been known around the world for centuries, particularly in East Asia. While ancient civilizations may have referred to L-theanine by different names, they understood and utilized its impact. (2) 

L-theanine is shown to produce calming, mood-enhancing effects by encouraging electrical brain activity commonly present when you are very relaxed, which sets you in a better mood. 

Moreover, L-theanine can modulate the formation of gamma amino butyric acid GABA (gamma amino butyric acid), a neurotransmitter that regulates the levels of two other neurotransmitters, dopamine and serotonin, and also promotes relaxation. (3)

A high-quality, pure theanine supplement

Beware of L-theanine 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.

Life Extension® L-Theanine contains only the pure L-theanine form of this amino acid. This formulation provides 100 mg of soothing L-theanine in a convenient product.