Sports Research Double Strength L-Theanine Supplement – Suntheanine Softgels for Focus, Relaxation & Alertness – Non-Drowsy Support Made with Coconut Oil, Non-GMO & Gluten Free – 200mg, 60 Count

Customers find this L-Theanine supplement effective, particularly noting it works well with coffee and helps with focus and mental clarity. Moreover, they report improved sleep quality, waking up refreshed, and reduced anxiety. The supplement receives positive feedback for its quality and health benefits, with one customer mentioning it helped with gut health. However, customers disagree on whether they feel groggy after taking it.

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