When I heard Fashion Bug had a dupe to OPI's coveted Mad as a Hatter, I scurried to their site to order a bottle. I'm not sure why hearing about a dupe makes me want it even more, but it really is fiscally irresponsible. On the bright side, now I can compare the two.

Multi Red, Mad as a Hatter

As you can see, they are not dead on dupes, but they are similar. Multi Red has more red, and the glitter looks slightly bigger than MaaH. From a distance, though, the difference is trivial. So, if you missed out on MaaH, perhaps Multi Red will satisfy your lemming.