Melatonin is a hormone synthesized in the pineal gland in the brain. It helps regulate the body’s circa sleep/wake cycle, the natural, internal clock that controls when we fall asleep and when we wake up. When it’s dark‚ our bodies’production of melatonin increases. When in day’s light, our melatonin level tapers off. Other unwanted daily stimuli like bedtime light exposure from a tablet or smartphone‚ jet lag‚ changing seasons‚ working later hours or poor vision, age etc…can also cause disruptions in our sleep-wake cycle and disturb our body’s Melatonin production. Carlson Labs Melatonin helps restore this natural function so you can sleep soundly and wake up feeling refreshed and revitalized in the morning.