Melatonin serves as the bodys biological clock, managing the sleep and wake cycles. Age, everyday stress and diet choices induced by busy lifestyles can take a toll on the bodys production of melatonin.Natrol Melatonin vitamins, the #1 melatonin brand in America, is a nighttime sleep aid that assists with occasional sleeplessness. It helps to establish normal sleep patterns to give you a more restful, relaxing sleep and in turn, better overall health. Natrol Melatonin Fast Dissolve comes in strawberry flavor that tastes great and can be taken anytime, anywhere. No water needed. It is fast-acting and perfect for those that have a hard time with swallowing vitamins and supplements.