A comb that untangles clumped eyelashes

My mascara clumps when I apply it, so I'm looking into eyelash combs. I've heard Picasso's are good, so I'm considering them. I haven't been able to test them out, so I'm not sure if they work well. Does anyone here use a Picasso eyelash comb? Or could you recommend a product from another brand that serves the same purpose?