Melatonin IR/XR helps you fall asleep and stay asleep all night long. It combines immediate-release and extended-release melatonin for approximately seven hours of healthy sleep support.Promotes healthy, uninterrupted sleep patterns.Unique MicroActive Melatonin combines immediate- and extended-release versions.Formulated to provide approximately seven hours of support.Convenient one-before-bed capsule.Dietary SupplementImmediate & Extended ReleaseFall Asleep, Stay Asleep* 149076SKU 737870220169