|"There are plenty of eye-witness accounts. Just because you're so narrow-minded you need to have everything shoved under your nose before you–"
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Troll whiskers are the facial hairs of trolls. A magical substance, they can be used as wand cores, though in modern times it is considered an inferior substance to Garrick Ollivander's three Supreme Cores. The wand of Sir Cadogan was rumoured to have contained a troll whisker core.
- Pottermore (Mentioned only)