Dual-Acting Relaxation & Sleep Support! Natrol® combines the power of Melatonin and L-Theanine in one powerful formula, to help the body relax at the end of the day and aid in falling asleep. A good night’s sleep can help restore the body, promote a healthy immune system, and may even help to maintain a healthy body weight This powerful formula contains L-Theanine, a naturally occurring component of green tea with relaxing and calming properties. It may help to relax the body by promoting the brain’s alpha waves, similar to those measured in deep meditation. Melatonin is a nighttime sleep aid to assist with occasional sleeplessness. It helps to establish normal sleep patterns to provide a more restful, relaxing sleep and in turn, better overall health