Melatonin plays a key role in regulating the body's circadian rhythm. Melatonin can be helpful in regulating sleep cycles in individuals who have irregular sleep patterns. Encourages Healthy Sleep Patterns Helps Regulate the Body's Circadian Rhythm Maintains Normal Inflammatory Balance Helps Combat Jet Lag Melatonin is a hormone produced by the pineal gland that plays a key role in regulating the body's circadian rhythms and induction of sleep. It plays an essential role in regulating the sleep cycles, and when supplemented, can be helpful for those who have irregular sleep patterns. This formulation is available as 1 mg tablets for flexible dosing.