The world’s first BioSeries three-in-one tablet in capsule technology is designed to optimize melatonin release throughout the night to support a natural sleep-wake cycle* BioSeries technology combines 5mg of instant and extended release Melatonin designed with the body’s ...The world’s first BioSeries three-in-one tablet in capsule technology is designed to optimize melatonin release throughout the night to support a natural sleep-wake cycle* BioSeries technology combines 5mg of instant and extended release Melatonin designed with the body’s Melatonin release in mind. * Melatonin releases in phases to support falling asleep and staying asleep to wake up rested. * Formulated with Pure Italian Melatonin.