Nature's Harmony Sleep Tight Liquid Melatonin 3mg, 50ml Melatonin is a hormone produced by the pineal gland in the brain. Responsible for regulating our sleep-wake cycles, this hormone is released into the bloodstream to induce sleep. Melatonin helps regulate our body’s regeneration process and, therefore, helps to maintain healthy, youthful tissues. Melatonin promotes sleep, eases shift work transitions, and may relieve jet lag, without the hazards or side effects of prescription sleeping pills. In the natural sleep-wake cycle, darkness triggers the release of melatonin. Once released into the bloodstream, melatonin prepares the body for sleep, decreasing temperature, alertness and performance. Melatonin supplements interact with melatonin receptors in the brain in the same way to induce sleep and help regulate the body’s normal sleep patterns.