L-Theanine is an amino acid. It is derived from ordinary tea leaves. It is responsible for the calming effects of tea. It was discovered as a component of green tea in 1949.
In Japan in 1964 it was approved as safe for unlimited use in all foods. It is very popular in this role, because it is known to impart a unique savory flavor to foods.
L-Theanine is also an amino acid analog that is comparable to L- Glutamine, which has been shown to be helpful at improving communication between the two hemispheres.
This is important because in animal studies, low glutamine levels caused convulsions, and Alzheimer’s or senile dementia type changes in the brain. 1
L-Theanine promotes mental focus and clarity and reduces anxiety. It produces relaxation without causing drowsiness. 2 It is often combined with other nootropics, like noopept and piracetam to potentially enhance their beneficial effects on the brain.
Overall, L-Theanine demonstrates synergistic effects with stimulants and nootropics. It can enhance their function while lessening unwanted side effects that can be anxiety producing. L-Theanine’s other brain benefits include that it. 3
- Stimulates the production of serotonin and dopamine, brain chemicals that produce a positive mood and rev up brain activity
- Counteracts adverse stimulant side effects like increased heart rate, anxiety, and hyperactivity
- Promotes a more focused and cheerful mental state
- Relieves mental stress by inducing a relaxed state without drowsiness
- Has been shown to be safe and non toxic in appropriate dosages