Watermelon Seed Oil
Watermelon Seed Oil is also known as Ootanga Oil and Kalahari Oil. In Africa, watermelon seeds have been prized for the highly nutritive oil that they contain. Traditionally, the seeds are removed from the rind and then allowed to dry outside in the sun. Once dried, the seeds are then pressed to extract the beneficial oil.
The source of watermelon seed oil is the watermelon seed. The watermelons generally used for oil extraction is Citrullus lanatus. This is the common watermelon that we savor in summers. Another variety used for extracting oil is the Citrullus vulgaris. There is also a wild variety of watermelon, called Citrullus colocynthis but this is less used.
Watermelons are native to Africa and it is here that the local people have devised many uses for its seed oil. The seed are thick and come in many shades of color but are generally black.
As a carrier oil, Watermelon Seed Oil is a light oil with good absorption. It is a good choice for use with oily skin but can be effective with all skin types. Its viscosity, mild aroma and indefinite shelf life make it a good all-purpose carrier oil for use in aromatherapy. Other thicker oils and oils with shorter shelf lives can be blended with Watermelon Seed Oil to lighten their texture and aroma and extend their overall shelf life.
To obtain oil, watermelon seeds are sun dried. This lowers the water content in them. Then the seeds are pressed for extracting fine, yellow colored oil. There are many ways in which this oil is extracted.
1. Cold pressed method
2. Solvent extraction using hexane  as solvent.
3. Supercritical carbon dioxide extraction.
Uses for Watermelon Seed Oil
Methods of Oil Extraction