- "Castor Oil can be used as an ingredient in some potions."
is a vegetable oil extracted from the castor bean
It was used as a potion
ingredient and sold at the apothecary
in Diagon Alley
for 4 galleons
It is also kept in the Hospital Wing
Behind the scenes
- In the real world, Castor oil has applications in areas such as food preservation and medicine.
Notes and references