Melatonin is a key component of your "sleep-wake" cycle, signaling your body that it is time to sleep. Aging, stress levels, diet, exercise, and screen time can disrupt and minimize our body's ability to produce melatonin. Natrol® sleep supplements are made with clean ingredients and 99% Pure Melatonin to help with occasional sleeplessness.* Our Natrol® facilities have successfully been audited to NSF International GMP Certified NSF/ANSI 455-2 Good Manufacturing Practice (GMP) for Dietary Supplements, which is one of the highest quality audits available in the U.S. in the Dietary Supplement Manufacturing category. Natrol® is dedicated to creating innovative, quality products, to help you maintain good health and thrive in your busy, modern lifestyle. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.^Nielsen, xAOC, 52 weeks ending 02/24/24, Sleep Aid Supplements††Ratings based on results of the 2022 ConsumerLab Survey of Supplement Users.