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Ingredient Science

L-Theanine: Calm Alertness Without Stimulation, Explained

2026 guide · MemoPezil Research Team

Beyond the general six-ingredient overview, here's a focused look at what this specific amino acid contributes.

What this ingredient actually does

L-Theanine is an amino acid from green tea that promotes relaxed alertness without drowsiness — included specifically to help balance the formula and reduce potential overstimulation from the other active ingredients.

Why this matters for a stimulant-free formula

Since this formula's own materials confirm no caffeine or synthetic stimulants, L-Theanine's calming role is worth understanding as a deliberate formulation choice supporting that stimulant-free positioning, not an accidental inclusion.

💡 This is general educational information, not personalized medical advice.

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