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.

Herb
Rhodiola is a group of hardy, cold-climate plants used to make herbal extracts marketed for stress and fatigue.
Herb
Green tea comes from the leaves of Camellia sinensis, picked and heated quickly to stop the oxidation that turns leaves into black or oolong tea.