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Hermione Granger: "What are the three most crucial ingredients in a Forgetfulness Potion?"
Ronald Weasley: "I forgot."
— Ron and Hermione studying for their final exams[src]

The Forgetfulness Potion is a potion which causes an unknown degree of memory loss in the drinker.[1] The recipe for this potion can be found in Magical Drafts and Potions; its key ingredients include Lethe River Water, mistletoe berries, and Valerian sprigs.[1][2]

History

"I feel like I've drunk a Forgetfulness Potion. How do I do this again?"
Jacob's sibling asks Penny Haywood a question

During the 1986–1987 school year, Penny Haywood asked Jacob's sibling to brew the potion with her in secret, intending to drink it herself.[2]

Since this potion was of beginner's level, Professor Severus Snape had his first year students brew this potion for their final exam in 1992.[3]

Recipe

Part 1

  1. Add 2 drops of Lethe River Water to your cauldron
  2. Gently heat for 20 seconds
  3. Add 2 Valerian sprigs to your cauldron
  4. Stir 3 times, clockwise
  5. Wave your wand
  6. Leave to brew and return in 45-60 minutes

Part 2

  1. Add 2 measures of Standard Ingredient to the mortar
  2. Add 4 mistletoe berries to the mortar
  3. Crush into a medium-fine powder using the pestle
  4. Add 2 pinches of the crushed mixture to your cauldron
  5. Stir 5 times, anti-clockwise
  6. Wave your wand to complete the potion

Behind the scenes

  • Given that every potion's brewing process must include a magical component to complete it, the most likely spell to complete this potion's brewing process is a Memory Charm.

Appearances

Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Pottermore
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Harry Potter: Hogwarts Mystery, Year 3, Side Quest "Penny for Your Thoughts"
  3. Harry Potter and the Philosopher's Stone, Chapter 16 (Through the Trapdoor)


Potions (class)
Wideye-or-awakening-potion
Potioneer
Arsenius Jigger · Damocles · Glover Hipworth · Golpalott · Gregory the Smarmy · Gunhilda of Gorsemoor · Hector Dagworth-Granger · Hesper Starkey · J. Pippin · Laverne de Montmorency · Libatius Borage · Regulus Moonshine · Rubens Winikus · Sacharissa Tugwood · Tilden Toots · Dr. Ubbly · Zygmunt Budge
Professors Bartholomew · Horace Slughorn · Severus Snape · Swoopstikes · Vindictus Veridian · Unnamed Professor (16th century) · Unnamed Professor (2021)
Textbooks Magical Drafts and Potions · One Thousand Magical Herbs and Fungi · Advanced Potion-Making · Moste Potente Potions · A Collection of Above Three Hundred Receipts in Cookery, Physick, and Surgery
Potions at Hogwarts Potions Classroom · Potions Staircase · Potions basement · Potions Club · Potion Master's office · Potion Master's storeroom · Dungeon Five · Cauldron cupboard
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