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Bulbadox juice is a magical substance which is extracted from the Bulbadox plant. It is unknown if it shares the same proprieties of Bulbadox powder. It is used in Potion-making as an ingredient, as a bottle of it can be found in the Potions Classroom.
During the Calamity which affected the Wizarding world in the 2010s, Bulbadox juice was used as ingredients in the brewing of the Tonic for Trace Detection by wizards and witches of the Statute of Secrecy Task Force.