Melatonin is synthetic and is pharmaceutical grade. It is known as N-Acetly-5-Methoxytryptamine. It is naturally occurring chemical substance (hormone) present in a number of foods including rice, barley, corn & meat. It is produced in the Pineal Gland, which regulates the body's biological clock's natural wake/sleep cycle.

30-0050 Kaizen Melatonin, 3 mg 60 capsules Nutrition Facts Serving Size: 1 capsule Servings Per Container: 60 Amount Per Serving % Daily Value* Pyridoxine (B6) 2  mg 100%    Melatonin 3  mg   *Percent Daily Values are based on a 2,000 calorie diet.   Other Ingredients: Cellulose, magnesium stearate (vegetable), gelatin (capsule). Recommended Use: As a dietary supplement, take 1 capsule 20-30 minutes prior to desired bedtime. Do not take more than 2 capsules daily, unless recommended by your qualified healthcare consultant. Warning: Use only at bedtime. Do not use if you are pregnant, lactating or under the age of 18. If you are under medical supervision or have an autoimmune condition, a depressive disorder, or are taking MAO inhibitor drugs or corticosteroids, consult with your physician before taking this product. Do not take if you are operating machinery or a vehicle. Before beginning any program of weight loss, consult your health care practitioner. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease. If you notice any errors in the information above, please let us know. If you have further questions about this product, please contact Kaizen at 1-800-300-4466