Melatonin can help people with low melatonin levels fall asleep more easily, sleep longer and wake up less frequently by resetting an internal clock disrupted by jet lag, daylight savings time, or shift work. This pure, safe, synthetically-sourced melatonin is vegan, non-GMO, dairy, soy- and gluten free, non-addictive and does not produce the “hangover” effect of many sleep-aid drugs.