A brush ferrule is the metal portion of a makeup brush that sits between the brush hair and the handle. It’s an important part of the brush and has a number of uses.

The ferrule is what connects the handle to the brush head. Typically, a handle made from plastic or wood is glued into a hole in the ferrule. This hole needs to be the correct diameter to fit the handle perfectly.

On the other end, the ferrule is specifically designed to hold the brush hair. Typically, glue is also used to adhere the brush head to the ferrule. The ferrule itself needs to be shaped perfectly to ensure the brush head will be the correct shape and thickness that is desired.

A brush ferrule is made either out of aluminium or copper. Aluminium is the more common material used as it is cheaper and more easily shaped. It can also be made into any colour desired. Copper or Brass ferrules generally look more elegant. They reflect light a little better. The material too is also stronger. Typically, the more expensive makeup brushes will feature a Copper Ferrule. which looks striking in a Rose Gold or Gun Metal Grey Colour.