Now Foods, L-Theanine, Double Strength, 200 mg (60 Days Pack)
L-theanine is an amino acid, commonly found in green tea leaves. L-theanine has been used historically as a relaxing agent. It calms the mind without causing drowsiness. Thus oral intake of L-theanine supplements can help to manage stress. It also helps increase focus and plays a role in managing blood pressure
The Science Behind L-theanine
L-theanine is an amino acid found predominantly in green tea leaves. It has been been widely studied as a non drowsy relaxing agent in several scientific studies. In a human study, it was observed that oral intake of L-theanine could cause anti-stress effects via the inhibition of cortical neuron excitation. It was also observed in the same study that L-theanine intake resulted in a reduction in the heart rate (HR) and salivary immunoglobulin A (s-IgA) responses to an acute stress.
Another study provides support to the understanding that L Theanine promotes relaxation without causing drowsiness.
L-theanine in combination with caffeine was shown by another study to help in focusing attention during a demanding cognitive task.