Dietary supplement. Helps promote sleep. No sugar, starch, yeast, wheat, milk, soy, artificial colors, flavors or preservatives. Melatonin is a terrific choice for people experiencing occasional sleeplessness, those with jet lag, or anyone seeking to improve their quality of rest This maximum strength formula should be used by individuals who may need a higher level of sleep support. Melatonin works in harmony with your natural sleep cycle to give you the tranquil rest you deserve, so you can awaken feeling refreshed.