No.01
L-Theanine
Why this matters
- № 01Promotes alpha brain waves for relaxed alertness*
- № 02Takes the edge off caffeine without reducing its benefits*
- № 03Supports focus without drowsiness*
The Library · Vol. 01Entry No. 23· Chapter 03
L-Theanine
L-γ-glutamylethylamide
An amino acid found almost exclusively in tea leaves. L-Theanine promotes calm focus by increasing alpha brain waves - the same state achieved during meditation.
1
Active compounds
6
In our products
1
Clinical citations
03
Nootropics & Brain
L-γ-glutamylethylamideBotanical illustration
§ 1The molecules
Active compounds.
*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
§ 2Receipts
What the research shows.
“Multiple clinical trials demonstrate that combining caffeine with L-theanine produces superior cognitive benefits compared to either alone. A meta-analysis of 15 studies found the combination significantly improved reaction time, attention accuracy, and mood. L-theanine helps maintain focus while smoothing caffeine's stimulant effects.”Nutrition Reviews, 2025
From the Library · Vol. 01
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