Ayur-Ashwaganda, provided by Douglas Laboratories, supplies 300 mg of ashwaganda in each capsule. Withania somnifera, also known as ashwaganda, is a traditional herb used in Ayurvedic medicine. It is used as a general tonic, to support energy production and improve mental and physical performance. The active ingredients in ashwaganda, withanolides, are thought to have calming properties that can support the body during times of emotional and physical stress. Indications: Ayur-Ashwaganda may be a useful dietary adjunct for individuals wishing to supplement with this herb.