Castor oil is a vegetable oil extracted from the castor bean.^[1] It was used as a potion ingredient and sold at the apothecary in Diagon Alley for 4 galleons a bottle.^[2]

Behind the scenesEdit

• In the real world, Castor oil has applications in areas such as food preservation and medicine.^[1]

AppearancesEdit

• Pottermore

Notes and referencesEdit