Unicorn hairs are hairs stripped from a unicorn's tail. According to a statement by Horace Slughorn, unicorn hairs are worth ten Galleons apiece.
Unicorn Hair wands are described to produce the most consistent magic, as described by Garrick Ollivander. If you have a Unicorn Hair in your wand, it will be difficult to turn to Dark Arts, making it a good core for bad people. A minor disadvantage of a Unicorn Hair wand is that they are not the most powerful.
- Ron Weasley
- Mary Cattermole
- Remus Lupin
- Quirinus Quirrel
- Sybill Trelawney
- Draco Malfoy (According to the Movies)
- Harry Potter and the Goblet of Fire
- Harry Potter and the Half-Blood Prince