Quest Melatonin is a high-quality supplement to help increase sleep time. Melatonin is a hormone that helps regulate our natural circadian rhythm (sleep-wake cycle). As we age, our natural production of melatonin decreases, leading to sleeping problems. Supplemental melatonin can help improve recovery from shift work or jet lag, and thus diminish fatigue.   Recommended Use   Helps increase total sleep time aspect of sleep quality in people suffering from sleep restriction or altered sleep schedule, e.g. shift-work or jet lag. Helps relieve the daytime fatigue associated with jet lag. Helps reduce the time it takes to fall asleep in people with delayed sleep phase syndrome. Helps reset the body’s sleep-wake cycle aspect of circadian rhythm.   Adults take 1 capsule a day at bedtime only. For use beyond four weeks, consult a health care practitioner.   Description   Each easy-to-swallow capsule of Quest Melatonin contains 3 mg of melatonin. This product does not contain artifi cial preservatives, colours, or fl avours, or corn, dairy, egg, gluten, shellfi sh, soy or sulfi tes. \   How it Works   Melatonin, also known as N-acetyl-5-methoxytrytamine, is a hormone synthesized in the pineal gland, primarily at night. This hormone is stimulated by darkness and inhibited by light. Melatonin helps to regulate our sleep-wake cycle, helping the body to relax so that we can drift easily into sleep.   Side Effects   May cause headache, transient depression, daytime fatigue, daytime drowsiness, reduced alertness, abdominal cramps, or irritability.   Safety   Consult a health care practitioner before use if you have cerebral palsy, diabetes, liver disease, seizure disorders, depression, or hypertension, or if you are taking blood pressure medications. Do not use if you are taking immunosuppressive drugs. Do not use if you are pregnant or breastfeeding. Do not drive or use machinery for 5 hours after taking melatonin.   Keep out of reach of children. Keep tightly closed in a cool, dry place.