L-Theanine
An amino acid found naturally in green tea that promotes calm focus without drowsiness. L-theanine increases alpha brain wave activity, supporting relaxation and stress reduction. Often combined with magnesium and melatonin for improved sleep quality, or paired with caffeine for smooth, jitter-free mental clarity.
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Why Experts Recommend L-Theanine
5 leading longevity researchers include L-Theanine in their protocol. Here is who recommends it and why.
Andrew Huberman
Neuroscientist & Stanford Professor · Andrew Huberman's Optimal Health Protocol
Gary Brecka
Human Biologist & Mortality Researcher · Gary Brecka's Ultimate Human Protocol
Nora Maas
Yoga Teacher, Biomechanics Specialist & Wellness Educator · Maas Yoga Holistic Wellness Protocol
Minji Kim
Holistic Wellness Expert & Content Creator · Minji Kim's Holistic Wellness Protocol
陶勇 (Tao Yong)
Ophthalmologist, Beijing Chaoyang Hospital & Resilience Advocate · Tao Yong's Resilience & Wellness Protocol
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