Spearmint oil is extracted though steam distillation from a plant of spearmint or mentha spicata that is widely found in Southwest Asia and Europe. The components of spearmint oil are menthol, limonene and dihydrocarvenol. It is pale yellow or greenish colored oil with aroma of peppermint oil.

Spearmint oil is rich in vitamin A and vitamin C, and has antiseptic, disinfectant, antispasmodic, cephalic, anti-fungal, anti-bacterial and stimulative properties. Due to its antiseptic and disinfectant properties, spearmint oil can be used to heal minor wounds. It also can be effective in healing ulcers of the stomach and intestine. Menthol has shown antispasmodic properties. Therefore, it can provide relief in abdominal cramps, cough, muscle cramps and nervous convulsions.

Spearmint oil has soothing effect on the brain, for which it is used to reduce stress and anxiety, and help the mind to relax. Apart from this, some other conditions, in which the oil can provide relief are, asthma, sinusitis, headaches, migraine, cold, congestion, bronchitis, flatulence, nausea, diarrhea, dermatitis, and fatigue. For women, the oil has additional benefits, as it can alleviate some common menstrual problems. It can resolve the problems of irregular menstruation, heavy periods and early menopause.

Spearmint oil can be added to tea to prepare herbal tea, or taken in a diluted form. Due to mild property of spearmint oil, it can be taken by children as well. However, it should be heavily diluted before it is given to children. In addition, spearmint oil can also be used as an insecticide to control mosquitoes, ants, flies and moth infestation in home.