The oil that comes from steaming the needles and twigs of evergreen cypress trees has a sweet and delicate scent. While you may not be as familiar with the aroma of cypress as you are with vanilla or nutmeg, cypress oil is a very common ingredient in perfume and cologne. It appears in fragrances by Clinique, Dior, Gucci, Calvin Klein, Dolce & Gabbana and others. People also cherish cypress for its therapeutic properties, as it can be used to help regulate blood pressure. Cypress blends particularly well with other oils on our list: sandalwood and bergamot.