Do copic blenders work on any marker?

Copic blenders are specifically designed to work with Copic markers, which are alcohol-based. While they can blend colors effectively within the Copic range, using them on other types of markers, such as water-based or permanent markers, may not yield the same results. The effectiveness largely depends on the ink composition of the other markers. For best results, it's recommended to use Copic blenders with Copic markers.