Sunflower vegetable oil is extracted by first cold pressing the seeds of Helianthus Annuus L., from the Asteraceae family.

This annual plant can reach up to three meters in height. Its stems are erect and rough, with alternate, petiolate leaves and serrated edges. The underside of the leaves is usually rough, sometimes glandular, while the upper side is smooth. The involucre is hemispherical, measuring 15-40 mm, with lanceolate, veined, and generally rough bracts. The ligules are yellow, orange, or red, ranging from 2.5 to 5 cm, and the florets, numbering between 150 and 1000, are of the same color, with reddish-brown stamens. The fruits are oval achenes, 3-15 mm in size, dark or speckled, and the pappus consists of two lanceolate scales, 2-3.5 mm, sometimes accompanied by smaller scales.