The Miru Journal

Science, ritual, and the
art of daily performance.

Evidence-based articles on matcha, L-theanine, EGCG, and what it means to perform at your peak every day.

Featured

L-Theanine: The Molecule Behind Calm, Focused Energy
Science 5 min read

L-Theanine: The Molecule Behind Calm, Focused Energy

Coffee gives you energy. Matcha gives you clarity. The difference comes down to a single amino acid — L-theanine — and what it does to your brain waves, cortisol, and attention span.

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EGCG and Fat Oxidation: What the Research Actually Says
Performance 6 min read

EGCG and Fat Oxidation: What the Research Actually Says

Matcha's most potent catechin — EGCG — has been studied extensively for its role in metabolism, fat oxidation, and body composition. Here's what the peer-reviewed evidence shows, and what it doesn't.

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Matcha vs. Coffee: An Honest, Evidence-Based Comparison
Lifestyle 4 min read

Matcha vs. Coffee: An Honest, Evidence-Based Comparison

We're a matcha brand, so you might expect us to say matcha wins. The truth is more nuanced — and more useful. Here's an honest breakdown of when each one is the right choice.

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New articles, every two weeks.

Science-backed insights on performance, matcha, and the daily ritual. No noise.