Valerian root comes from a plant, and melatonin is a hormone that naturally exists within the body. ... Suppliers grow them all over the world, including North America and Asia.

Valerian root is available over the counter in health food stores, herbal shops, and supplement stores, but always talk to your doctor before you take valerian root supplements. Sources Update History ...

Valerian root and melatonin are two natural sleep aids. Here, learn about their differences, how well they work, possible side effects and interactions, and the best dosages in various situations ...