We love this brush because it is round with a tapered tip that allows for controlled pickup and precision and it has a soft point blends without leaving hard edges for softly diffused depth and dimension. It works especially well with the PurePressed® Eye Shadow, Active Light® Under-eye Concealer, and PureMatch Liquid Concealer.

Naturon 

Place brush on the outer corner of the eye and blend into the crease using small back-and-forth motions. Use a circular motion to buff concealer under the eye.