"Then you have not lost your humanity, you have reaffirmed it."
― Tuvok (Star Trek Voyager)

The power to revert transformed people to their original states. Variation of Negation. Opposite to Conversion.

Also Called

  • Conversion Curing/Reversal
  • Detransformation
  • Reverse Conversion
  • Reversion
  • Transformative Negation
  • Transformation Undoing
  • Untransformation


The user can transform other beings back into their original species; for example, the user can turn a vampire back into their original species, or reverse a non-hereditary werewolf's lycanthropy.




  • May not work on users of Regenerative Healing Factor.
  • May be constantly active and uncontrollable.
  • Does not work on beings who are not the result of some form of Conversion; e.g. someone who was born a vampire rather than turned, or someone who was built as a robot rather than roboticized.
  • Users of Omni-Conversion are immune.

Known Users

  • Lumpy Space Princess (Adventure Time)
  • Charlotte Aulin (Castlevania: Portrait of Ruin); via Sanctuary
  • Dracula (Dracula 2000); reverts vampirism
  • Falion (The Elder Scrolls V: Skyrim); can cure vampires via a Black Soul Gem
  • Lilia Lilith (Is This a Zombie?)
  • Nerissa (Mako Mermaids); as a Water Dragon
  • Spider-Man (Marvel Comics)
  • Anti-Venom (Marvel Comics)
  • Ladybug (Miraculous Ladybug)
  • Asmodeus (The Shadowhunter Chronicles); can revert vampirism
  • Jesus (Sinfest)
  • Buddha (Sinfest)
  • Captain America (Ultimate Marvel)
  • Spirit-using Moroi (Vampire Academy); can revert Strigoi back to Moroi
    • Lissa Dragomir
    • Robert Doru
    • Nina Sinclair
    • Adrian Ivashkov
  • Elena Gilbert and Stefan Salvatore (The Vampire Diaries); their blood casts negative magic

Known Objects

  • Vampire Cure (The Batman vs Dracula)
  • Omnitrix (Ben 10)
  • DNA Repair Guns (Ben 10: Alien Force); humans only
  • Lotus Rice (Chinese Folklore); cures Chinese vampirism
  • Glenmoril Witch Heads (The Elder Scrolls V: Skyrim); reverts lycanthropy
  • Wolfsbane (Folklore); reverts lycanthropy
  • Gamma Cure (Marvel Comics)
  • The Cure (My Babysitter's a Vampire); reverts lycanthropy
  • Pearl of Transformation (My Little Pony: Friendship is Magic)
  • Devamper (Sanctuary)
  • The Uninventing Ray (The Secret Show)
  • Demon Curing Ritual (Supernatural); reverts demons back into humans
  • Purified Blood (Supernatural); the main catalyst used in the Demon Curing Ritual
  • Vampire Cure (Supernatural)
  • Werewolf Cure (Supernatural)
  • Retro-Mutagen (Teenage Mutant Ninja Turtles 2012 TV series); reverts mutants into their original non-mutated forms
  • The Cure (The Vampire Diaries); reverts vampirism
  • Shadow Sword (Yu Yu Hakusho); possesses an antidote that reverts its Conversion Slash

Known Locations

  • Moon Pool (H2O: Just Add Water/Mako Mermaids); can turn merpeople back into humans and vice versa
  • Mystic Falls (The Vampire Diaries); temporarily surrounded by a magic-negating field that could revert vampires and hybrids to their original state


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