Horklump juice

Horklump juice is a substance extracted from Horklumps. It is used in potion-making: it's a required ingredient of the Wiggenweld Potion. One can purchase some Horklump juice at one of the apothecaries at Diagon Alley. Harry Potter and the Chamber of Secrets (film) - DVD2 (Tour Diagon Alley)/ref>

Appearances

 * Harry Potter and the Philosopher's Stone (video game)
 * Harry Potter and the Chamber of Secrets (film)