Health & Wellness





Melatonin is a hormone produced by your body and secreted at night. Each serving of ON's Melatonin supplement provides 3 mg of pure melatonin along with 72 mg of calcium and 55 mg of phosphorus.

  • Sleep Support
  • 3 mg of PURE MELATONIN
  • Small, Easy-to-Swallow Tablets
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Who Uses Melatonin?

Theresa Lopetrone

“Melatonin saves me every time. During the week, my wake up and sleep times are consistent, but on the weekends, the amount of sleep I get fluctuates and by the time Sunday night rolls around, I can't sleep. Melatonin helps me sleep so that I can start the week off right! ”

Optimum Nutrition Quality

At ON we are proud to know that we are one of the few sports nutrition companies who own and operate their own production facilities. While it's true that ON is one of the world's largest producers of sports nutrition products, we remain focused on being recognized as the best. In fact, our requirements for raw materials are so strenuous that it's not unusual for ON Quality Assurance Technicians to reject entire truckloads of raw materials that do not meet our high standards. We like to think that we take as much pride & care in crafting our award-winning supplements as our consumers do with crafting their physiques and fitness accomplishments.

There is Only One Gold Standard

Optimum Nutrition's Award Winning supplements have consistently delivered the Highest Quality products to athletes across the globe -- Here is a brief look at how.