Unlike in peppermint, spearmint leaves have a negligible menthol content. This property of essential oil of spearmint comes from its menthol content, which has a relaxing and cooling effect on the nerves and muscles and helps to relax contractions in the case of spasms. It is particularly effective in protecting internal wounds and ulcers, like those in the stomach, food pipe, and intestines. The relaxing properties of spearmint oil help relax the intestines and muscles of the abdominal region, thereby allowing the gases formed in the stomach and the intestines to pass out of the body naturally. This provides relief from many health concerns, including uneasiness and restlessness, insomnia, headaches, stomach aches, indigestion, loss of appetite, chest pain, vomiting, cramps and other related symptoms.