100% Safe and Natural! L-Theanine, a unique amino acid commonly found in green tea, provides a natural form of stress relief and is known to reduce anxiety and improve concentration. L-theanine naturally stimulates Alpha wave generation in the brain, to help you achieve an awake, alert and relaxed physical and mental state. In addition, it increases dopamine and GABA levels, which leads to a feeling of happiness and well-being. L-Theanine does not cause drowsiness or impair a person's motor skills and effects are usually experienced within 30 minutes of consumption. ​2 droppers full directly into your mouth or mixed in water. Natural Lemon Flavor. ​Refrigerate after opening for optimal freshness. Unit Weight: 2 FL OZ. Case Weight: 9 LBS. Case Dimensions: 10" x 7" x 6".