Model render of the ADAM Vial.
The ADAM Vial is a container of ADAM found in BioShock 2 Multiplayer. Every time the player picks up one of these vials (by passing near it or with Telekinesis) they gains 10 ADAM, which counts towards the totals needed for character advancement through Ranks. The vials can be found scattered about in every level, such as in bushes or behind desks. They are similar in appearance to the vials on the Little Sister's syringes.
Two ADAM Vials seen in-game.