This oil has a long history of use by Native Americans. It is derived from the nut of the jojoba plant and is cold-pressed and filtered without the use of solvents. The plant is like a succulent in appearance that grows up to about 3 metres high, its roots adapted to desert growing can be as long as 4 metres. The oil is actually a liquid wax with a melting point of 7 oC to 9 oC. At lower temperatures it should homogeneously solidify if it does not it has either been refined or mixed with a cheaper vegetable oil such as soya or sunflower.