Peppermint oil is an aromatic herb that has many versatile uses. The oil extracted from the herb is pale yellow in color. It has a very minty aroma that is cooling and refreshing. Peppermint oil contains Omega-3 fatty acids, iron, magnesium, calcium, Vitamins A and C, minerals, potassium, manganese and copper.Citronella oil is used in small amounts to flavor foods, scent cosmetics, and repel insects. It has been used in aromatic tea as a vermifuge, diuretic, and antispasmodic although no clinical trials have been performed. Cardamom oil is particularly helpful for the digestive system. It works as a laxative and soothes colic, wind, dyspepsia and nausea - even nausea in pregnancy. It warms the stomach and helps with heartburn.When feeling weak and mentally fatigued, cardamom oil can help with its refreshing and uplifting effect.Cardamom oils' expectorant properties help clear coughs.