Medically reviewed by Violetta Shamilova, PharmD Melatonin is a popular sleep supplement that mimics the natural hormone your brain produces to help regulate your sleep cycle. For best results, it ...

The use of melatonin, a common sleep aid, has increased significantly in the last two decades. More than five times as many adults in the U.S. took melatonin in 2018 than in 2000.

And most didn't line up with what was labeled, Cohen and his team found. Only three of the 25 gummy products had a melatonin amount within 10% of the labeled quantity. There is no established ...

Melatonin reaches levels in the blood that can be more than 10 times higher than natural peak concentrations. Soon, many children begin to feel drowsy. Children can generally tolerate melatonin.

Previous research has highlighted just how varied the quality of melatonin products can be; a 2017 study in Canada found that one melatonin supplement contained more than 400 percent of the amount ...

Fact checked by Khara Scheppmann Most melatonin supplements recommend taking the product about 20 to 60 minutes before bedtime, but taking it earlier might be more effective. A recent review in ...