Cinnamon – True Bark (Organic), Cinnamon -True-Bark essential oil is used in aromatherapy as a carminative and antispasmodic for symptomatic relief of digestive discomfort as well as to help relieve cough and cold. Inhalation: Add 4 to 12 drops to a bowl of steaming hot water or a diffuser. Inhale slowly and deeply for 5-10 minutes.,Cinnamomum zeylanicum (C.verum)