L-Theanine is an amino acid found in green tea that produces calming effects without causing drowsiness. In Asia green tea is the preferred choice of stimulating beverages over coffee. Because it has both stimulating and calming effects creating an energized and focused state.

 In Japan, theanine is often added to soft drinks and chewing gum for it's relaxing properties.  The calming, mood-enhancing effect comes without side effects such as drowsiness or addiction. L-theanine works by helping to increase alpha-brain waves, electrical brain activity commonly present when you are very relaxed, literally putting you in a better mood

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