Ultra Micronized, Max Bioavailability. Restful and Relaxing sleep aid- fall asleep quickly, promotes healthy sleep patterns. Melatonin is a powerful hormone antioxidant. Melatonin is generally only released during the sleep cycle. Dark & Low light conditions at night signal the pineal gland to begin secreting melatonin, which causes relaxation, necessary for healthy, restful sleep. Melatonin works against harmful free radicals when we sleep which is necessary to prevent illness and disease. Melatonin has proven to be twice as active as vitamin E, believed to be the most lipophilic antioxidant. Necessary for healthy sleep. Inadequate melatonin levels are associated with poor sleeping habits, which can lead to a host of health issues. Sleep is important for brain function, sense of well-being, and healing muscle tissue. A healthy sleep cycle leads to good health in all areas of life.