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
Licorice is the root of Glycyrrhiza glabra, a plant whose sweet, fibrous root has been used across several traditional medical systems and is now studied in modern clinical trials.