L-Theanine is an amino acid naturally found in green tea, which has many benefits including antioxidant effects and immune and cardiovascular support, but it is primarily used to promote a positive and relaxed mental state. L-Theanine helps to calm and focus the mind, increasing alertness without causing drowsiness or any of the associated negative effects that caffeine can produce.  

During the day L-Theanine can boost concentration and promote calmness. At night it can help to relax the mind and enable it to switch off, for a more restful sleep. HealthAid L-Theanine 200mg tablets are specially formulated using the purest form of L-Theanine to provide perfect support for those with hectic lifestyles.