L-Theanine
LAST UPDATED JULY 05, 2026
L-Theanine is an amino acid found almost exclusively in tea leaves, best known for producing a state of calm, alert focus.
How it works
L-Theanine promotes alpha brain-wave activity — the pattern associated with relaxed attention — and supports the balance of calming neurotransmitters, without sedation. It's why a cup of tea feels focused where coffee alone can feel jittery.*
Why we chose it
We use a pure, high-purity L-theanine at a clinically studied dose, so it stacks cleanly with magnesium for evenings or with your morning coffee for smooth focus.*
Where you'll find it
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.