A composite essential oil for expanding corpus cavernosum is composed of 30˜50 parts of a cinnamon essential oil, 20˜40 parts of a black pepper essential oil, 40˜60 parts of a juniper essential oil, 20-40 parts of a ginger essential oil, 0˜30 parts of a jasmine essential oil and 0-20 parts of a clove essential oil by volume and provided for overcoming a mens health problem, particularly the erectile dysfunction.
