 The Professional Supplement Center has added new formulations to our own line of professional grade nutritional supplements. Melatonin plus five milligrams. This controlled release formulation delivers five milligrams of melatonin in two phases. One milligram immediately released upon digestion in the balance over a six-hour period. Melatonin helps to promote healthy sleep patterns and provides support for antioxidant and immune activities, free of artificial ingredients. If you have any questions about this product or any of the Professional Supplement Center's new formulations, please call, visit or email us. And one of our knowledgeable supplement specialists will be happy to assist you.