Vials are for storing the produced poison in a flask. You can buy them or produce them with pottery. It is strongly recommended you learn pottery because the produced vials are much cheaper than the bought one and you can make quite a coin from selling them. There are three kinds of vial.

Suspension Fluids

The suspension fluids are liquids that are used to dissolve and bind the ingredients. Different suspensions are needed for different poisons. All of this suspensions have to be purchased from a merchant.