Natrol Melatonin Fast Dissolve is a nighttime sleep aid that assists with occasional sleeplessness, while also working to help reduce overall anxiety. Natrol Melatonin Fast Dissolve helps to establish normal sleep patterns to give you a more restful, relaxing sleep and in turn, better overall health by promoting a healthy immune system.* Natrol\’s unique fast dissolve strawberry formula enables faster absorption that can be taken anytime, anywhere. No water needed.