Pure Encapsulations - Melatonin 3 mg - 60 caps 

Supports the body's natural sleep-wake cycle. Promotes regulation of the body's circadian rhythm. Helps increase total sleep time and reduce the time it takes to fall asleep; Contains 99.5% pure melatonin; Made with high-quality vegan ingredients.

Melatonin is a hormone produced by the pineal gland, which regulates the body's sleep/wake cycle. Melatonin's primary role is regulation of the body's circadian rhythm, endocrine secretions and sleep patterns. Studies indicate that it facilitates the onset of sleep, as well as sleep efficiency. Research has shown that melatonin supplementation helps reset the body's sleep-wake cycle, an aspect of circadian rhythm. It helps reduce the time it takes to fall asleep (sleep onset latency) in people with delayed sleep phase disorder, characterized by trouble falling asleep at desired or conventional times. Melatonin also increases the total sleep time in people suffering from sleep restriction or altered sleep schedule, including shiftwork and jet lag, and helps to relieve the daytime fatigue associated with jet lag.