Swanson Arjuna features Terminalia arjuna, a deciduous tree found throughout India. Arjuna bark has been used for over three thousand years and is a part of the traditional ayurvedic practice to support cardiovascular health. The arjuna bark benefits are many, and while the arjuna herb has been used in various forms throughout the ages to treat a number of ailments and conditions, today it is most widely used as an overall cardio tonic herbal supplement. Some research studies have also shown that arjuna extract can provide antioxidant activities.