Fans Are Sharing Obscure 'Harry Potter' Lore About The Polyjuice Potion

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Vote up the most interesting lore about the most famous potion in Harry Potter.

The Polyjuice Potion might be the most famous concoction in the entire Harry Potter series but there is still a lot about the mix that isn't known. These fans and the author herself are pointing out new or missed information about the potion.


  • 1
    41 VOTES

    You Can Use The Body Part Of A Person For The Potion For A Full Moon Cycle After They Die

    From Redditor u/JGlover92:

    The donor of the aforementioned body piece must still maintain life for the effects of the potion to continue or function whatsoever. The effects (and effictiveness of said ingredient) may remain active or useful for one full moon cycle after the donor's death. 

  • 2
    62 VOTES

    Rowling Picked Each Ingredient For The Potion Deliberately

    From Redditor u/dangerouslycheesey94:

    [Rowling said] I remember creating the fill list of ingredients for the Polyjuice Potion. Each one was carefuIIy selected. Lacewing flies (the first part of the name suggested an intertwining or binding together of identities); leeches (to suck the essence out of one and into the other); horn of a Bicorn (the idea of duality); knotgrass (another hint of being tied to another person); fluxweed (the mutability of the body as it changed into another); and Boomslang skin (a shedded outer body and a new inner).

  • 3
    57 VOTES

    Hermione Being Able To Make The Potion Puts Her Above Many Adult Witches And Wizards

    From Redditor u/dangerouslycheesey:

    [Rowling said] The fact that Hermione is able to make a competent Polyjuice Potion at the age of 12 is testimony to her outstanding magical ability, because it is a potion that many adult witches and wizards fear to attempt.

  • 4
    57 VOTES

    The Potion Lasts Different Amounts Of Time Depending On How Well It Was Made

    From Redditor u/dangerouslycheesey94:

    [Rowling said] The timing of the potion is only temporary, and depending on how well it has been brewed, may last anything from between 10 minutes and 12 hours.

  • 5
    47 VOTES

    The Potion Tastes Like The Person You're Turning Into

    From Redditor u/sambalam29:

    I really liked that in the books it was said to take on appearance and flavor [of] whoever the person the potion-drinker was turning into. 

  • 6
    38 VOTES

    Different Body Parts Can Be Used In The Potion

    From Redditor u/dangerouslycheesey94:

    [Rowling said] It enables the consumer to assume the physical appearance of another person, as long as they first procured part of that individual's body to add to the brew (this may be anything - toenail clippings, dandruff or worse - but it is most usual to use hair).