Polyjuice Potion
An hour-long masquerade: become anyone, so long as you carry a piece of them.
The Polyjuice Potion is one of the most complex and dangerous transfiguration brews in the wizarding world, allowing a witch or wizard to temporarily assume the physical appearance of another person. By ingesting the mixture along with a piece of the target's body matter, such as hair or nail clippings, the drinker transforms completely into that individual for exactly one hour. This potion serves as a pivotal tool in the series, enabling characters to bypass security, gather intelligence, and navigate dangerous situations under false identities.
- Classification
- Transfiguration
- Difficulty Level
- Advanced (N.E.W.T. level)
- Duration of Effect
- One hour
- Key Ingredient
- Piece of the target's body matter
- First Major Appearance in Story
- Harry Potter and the Chamber of Secrets
Lore & Background
Though not classified as Dark Magic, Polyjuice is treated with deep suspicion by the Ministry due to its capacity to shatter identity. It remains a favorite tool of spies and fugitives alike. At Hogwarts, brewing it without permission isn't merely a rule breach; it's an act of rebellion that risks expulsion for anyone caught walking in another’s skin—literally.
In Their Own Story
The air in the girls' bathroom smelled faintly of mildew and crushed moths. Hermione Granger stirred the cauldron with a frantic precision, her eyes darting toward the door every few seconds. "One more drop," she whispered, her voice trembling slightly as the liquid inside bubbled into a thick, sickly green sludge. Harry and Ron stood by the window, their hearts pounding in rhythm with the dripping tap. They held the vials containing the stolen hairs of Crabbe and Goyle, knowing that one sip would erase who they were for sixty minutes. As the clock struck midnight, they downed the potion, feeling a strange warmth spread through their limbs before their bones cracked and reshaped, their vision blurring until two towering figures stood where three small students had been.
Reader's Guide
Hermione Granger famously brewed the potion during her second year to infiltrate Slytherin's common room, while Barty Crouch Jr. sustained a disguise as Mad-Eye Moody for nearly an entire school term. The brew adheres strictly to human biology; it rejects animals and ghosts entirely.
Did You Know?
- Brewing requires weeks of daily attention; a single misstep ruins the batch.
- Hermione Granger accidentally used Cat hair instead of Millicent Bulstrode's, resulting in her growing cat whiskers and fur for several hours.
- If a person drinks the potion while in pain, they will feel that same pain in their new form until the hour expires.