Cardamom essential oil is steam distilled from the plant's dried, ripe seed pods, and is one of the best aromatherapy oils to use as a 'general tonic' for the mind and body. Cardamom essential oil has soothing and antibacterial properties. Cardamom oil is used in aromatherapy to help calm anxiety and reduce feelings of pressure. It also has a refreshing and uplifting effect for those feeling weak and mentally fatigued.