Bitter orange, Seville orange, sour orange, bigarade orange, or marmalade orange is the citrus tree Citrus x Aurantium and its fruit. It is native to Southeast Asia and has been spread by humans to many parts of the world. It is probably a cross between the pomelo, Citrus maxima, and the mandarin orange, Citrus reticulata.

Bitter Orange Exfoliant is a natural exfoliating ingredient manufactured from the bitter orange peels a reference of the fruits range.

Bitter orange peel contains essential oil known for helping dry skin conditions and for its tonic properties. It also contains bioflavonoids and vitamin C which have anti-oxidant activity. Potent results are obtained in the treatment of capillary permeability with citrus bioflavonoids.