L-Theanine is a non-proteinogenic amino acid isolated from green tea leaves (Camellia sinensis). Its central mechanism: it amplifies alpha brain wave activity (8-12 Hz), the electrophysiological signature of a relaxed yet focused wakefulness — the same state observed in active meditation. Simultaneously, it modulates GABA and glutamate neurotransmitters, reducing mental background noise without causing sedation. The transition into concentrated focus becomes smoother, without the agitation generated by stimulation alone.
Its true power emerges in combination with caffeine. Caffeine alone produces adrenaline spikes followed by energy crashes. L-Theanine smooths this profile: it attenuates vasoconstriction, suppresses the rebound effect, prolongs mental clarity. Clinical studies on the 100 mg caffeine + 200 mg L-Theanine combination show measurable improvements in reaction times and cognitive accuracy — without the side effects associated with stimulation alone. This is why CalmFocus already integrates this duo; this standalone capsule lets you modulate your L-Theanine dose to your needs.
Our L-Theanine is HPLC ≥99% purity certified, encapsulated in vegetable HPMC capsules without magnesium stearate or titanium dioxide. Suitable for vegan, halal and kosher diets. Manufactured in the European Union to GMP standards. Optimal protocol: 100-200 mg 30 minutes before a work session, alone or alongside CalmFocus to deepen the alpha state.
