Ashwagandha (Withania somnifera or winter cherry) is one of the world's most powerful adaptogens, used traditionally in Ayurvedic herbalism to help the body adapt to physiological and psychological stress.

Ashwagandha is extensively used in Ayurveda, the traditional health care system in India. It is used as a general tonic and “adaptogen”, helping the body adapt to stress. In addition, Ashwagandha has been shown to possess significant antioxidant activity as well as an ability to support a healthy immune system.