The essential rosemary oil is prepared from the evergreen rosemary plant (rosemarinus officianlis) by the steam distillation process. It is thoroughly raised all over mediterranean zone and this plant species is indigenous to the country spain. It is colorless or pale yellow in color. The fluid has runny and watery texture with woody, floral and sweet immediate fragrance. It has got some kind of refreshing odor which has an ability to stimulate the entire body and the nervous system. It offers useful aromatic and medicinal properties.