Nature’s Harmony® Extra-Strength Melatonin 5 mg is a high-quality, high-dose melatonin supplement. Melatonin helps to reset the body’s circadian rhythm (sleep-wake cycle), helping to increase total sleep time and sleep quality in people suffering from sleep restriction or an altered sleep schedule, such as shift work and jet lag. Extra-Strength Melatonin is ideal for relief from temporary insomnia, providing natural relief without the side effects of prescription sleeping pills. Each easy-to-swallow tablet of Nature’s Harmony® Extra-Strength Melatonin contains 5 mg of synthetic melatonin. This synthetically sourced melatonin product is not sourced from the pineal gland of beef cattle, and therefore, contains absolutely no risk of BSE (mad cow disease). This product does not contain corn, dairy, egg, gluten, shellfish, soy, sulfites, animal derivatives, or artificial colours, flavours, or preservatives. Melatonin is a hormone produced by the pineal gland in the brain. Once released into the bloodstream, melatonin prepares the body for sleep by decreasing temperature, alertness, and performance. Nature’s Harmony® Extra-Strength Sleep Tight Melatonin interacts with melatonin receptors in the body in the same way as naturally produced melatonin to safely and effectively help restore the natural sleep-wake cycle, increase sleep time, improve sleep quality, relieve daytime fatigue associated with jet lag, and ease shift-work transitions.