Präparat is the eighteenth studio album by the Japanese experimental band Boris.

The album was announced along with two other releases [2] The album features the participation of musicians like Michio Kurihara and Gisèle Vienne.

It was previously released exclusively on vinyl only in Japan.

A second Japan domestic pressing was released in April 2014.

[3] "Evil Stack 3" is part of a series of drone pieces across multiple Boris albums, including the Damaged split and Rock Dream.