Reference Encyclopedia
Herbs, minerals, vitamins, adaptogens, and compounds — safety, dosage, interactions, and evidence in one place.

Herb
Valerian (Valeriana officinalis) is a flowering plant whose dried root is one of the most widely used herbal sleep aids in the world.

Compound
Melatonin is a hormone your own pineal gland (a small gland deep in your brain) makes at night to help set your internal clock.

Herb
Rhodiola is a group of hardy, cold-climate plants used to make herbal extracts marketed for stress and fatigue.