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.
Active Compounds
L-Theanine
- Promotes alpha brain waves for relaxed alertness*
- Takes the edge off caffeine without reducing its benefits*
- Supports focus without drowsiness*
*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
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.
Source: Nutrition Reviews, 2025
Learn more →Products with L-Theanine
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Founder’s Story
"Hi, I'm Tanner, Chief Mushroom Officer at Nomad Nutrients. I built this for people like me—optimizers who want a flexible, all-in-one supplement stack without the hassle. Build yours, dial it in, and keep exploring."
— Tanner
Chief Mushroom Officer