L-Theanine and Caffeine: The Science Behind Smooth Focus

The Synergy of L-Theanine and Caffeine

Caffeine is the world's most widely consumed natural stimulant. However, high doses of isolated caffeine can trigger over-stimulation, nervous jitters, increased heart rate, and an abrupt energy crash.

L-Theanine, a unique non-protein amino acid naturally found in green tea (*Camellia sinensis*), acts as a neuro-modulator that smooths out caffeine's hyper-stimulatory effects.

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How L-Theanine Modulates Stimulants

Promotes Alpha Brain Waves: L-Theanine crosses the blood-brain barrier and encourages alpha wave activity (8–12 Hz), associated with a state of relaxed focus and creative alertness.

Mitigates Peripheral Jitters: By interacting with glutamate receptors, L-Theanine tempers peripheral vascular constriction often triggered by caffeine.

Enhances Task Accuracy: Scientific studies demonstrate that pairing L-Theanine with caffeine leads to superior performance on attention-switching tasks compared to caffeine alone.

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Why PR90 Formulates L-Theanine with Clean Caffeine

PR90 Pulse Rush incorporates a balanced ratio of clean caffeine and L-Theanine alongside hydration electrolytes. This synergy delivers 90-second rapid energy that sustains clean focus throughout your work or training regimen.