Abstract: The present disclosure provides a cover for a cosmetic brush that includes a handle, a ferrule, and bristles. The cover comprises a body having substantially the same shape of the ferrule and bristles and comprising a stretchable and conformable material, the body having an internal volume sufficient to contain the entirety of the ferrule and bristles; a first opening at a first end of the body for receiving the cosmetic brush in a handle-first orientation; a stretchable second opening at a second end of the body, the second opening being less than or substantially the same width as the ferrule and capable of stretching to admit the ferrule therethrough; and a flap distally extending from the first end of the body, the flap configured to fold over the body to substantially cover the first opening and comprising a closure mechanism capable of attaching to the body. The cover is capable of holding the cosmetic brush substantially in place. Also provided herein is a covered cosmetic brush.