Zarbee’s Sleep with Melatonin gummies listed 3 mg of melatonin per serving, and one sample tested contained 6.24 mg per serving, or 208 percent more than the amount on the label.

Sleep Patch This 1.5-inch square patch is thin and clear. Each sticker-like patch contains 3 mg of melatonin, 2.5 mg of bacopa monnieri extract, 4.5 mg of valerian root extract, 3.5 mg of ...

While our bodies are designed to provide us with enough melatonin, research published in 2022 showed that Americans' use of melatonin supplements increased from 0.4% in 1999/2000 to 2.4% in 2017/2018.