Polyjuice Potion


Changes the appearance of the drinker

Brewing Time

1 month



The Polyjuice Potion was taught by Potions Mistress Hecate Lafay in Potions class as her final exam during 2074-2075. Students were given the assignment of polyjuicing into their classmates for one hour.


As the textbook explains, when properly brewed, the Polyjuice Potion allows the drinker to tranform temporarily into the physical form of another.


  • Extract of The-Transfigured-Being-To-Be (usually hair)
  • 12 Lacewing flies (stewed 21 days)
  • Leeches
  • Pinch of powdered bicorn horn
  • 25 pulverized knotgrass blades
  • 16 scruples (1.3 grams) Fluxweed (picked at full moon)
  • One ounce of crude antimony
  • Shredded Boomslang skin (whole body)
  • Three drachms of pulverised Sal Ammoniac (not the yellow kind)
  • Filings and rasplings of Saltpeter and Mercury and Mars. (Potassium nitrate, Mercury, and Iron)


  • Fill with water

    Hermione Granger, brewing Polyjuice Potion.

  • Light fire under caudron
  • Bring water to a boil
  • Stew Lacewing flies
  • Add stewed lacewing flies
  • Stir 12 times counter clockwise with glass stirrer
  • Add one ounce of antimony
  • Cut leeches into 5 pieces each, with a silver knife
  • Add leeches
  • Stir clockwise once
  • Add scruples one at a time
  • Let brew 3 minutes
  • Add drachms of pulverized Sal Ammoniac
  • Fold knotgrass blades using wooden spoon
  • Add bicorn horn powdered,
  • Add Saltpeter and Mercury and Mars
  • Add the shredded boomslang skin
  • Let Brew 30 days


Potions Lesson 3, Term 28

Potions Final Exam, Term 28

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