Acromantula venom

Acromantula venom is a highly valuable fluid that is secreted from the fangs of an Acromantula. Due to the nature of the Acromantula, the venom is virtually impossible to collect from a live specimen. The venom is therefore easier to collect after the death of the creature, but the venom dries out not long after death, so a Wizard must be swift in collecting it. Because of the rarity of the venom, it may fetch up to a hundred Galleons a pint on the open market.

Appearances

 * Harry Potter and the Half-Blood Prince