L-theanine, a water-soluble, non-protein amino acid commonly found in green tea and some mushrooms, has been widely studied for its ability to encourage wakeful relaxation without sedation. L-theanine crosses the blood-brain barrier, and hasthe ability to modulate inhibitory neurotransmitters, selective serotonin, and dopamine to bring aboutanti-stress and calming effects. L-theanine can also improve cognition and selective attention due to changes in alpha brain wave activity.
L-theanine is popular for:
Increasing mental focus and clarity;
Staying alert while remaining relaxed;
Stacking with coffee to reduce caffeine jitters and improve calm focus;
As a dietary supplement, take 1 – 4 capsules daily as needed.
For optimal function take separate of food and sources of amino acids. L-theanine is fast-acting, with clinically proven effects within 45 minutes of ingestion.
Store in a cool, dry place after opening.
If you're keen for some further reading on L-theanine, below are a couple research articles we frequently recommend as an introduction to L-theanine.asd