Cypress essential oil is obtained by water steam distillation of the branches of Cupressus sempervirens. This is a arboreal species native to the eastern Mediterranean regions. The monoterpenes α-pinene and delta-3-carene have calming and bronchodilating properties. These components are present in the composition in a high percentage. To a lesser extent, we find the presence of limonene and myrcene, which are aromatic terpenes that give the essential oil of cypress its intense characteristic aroma.