One of the really standout features of these new brushes are how soft they are. When I heard that these were made of synthetic bristles, my first thought was, "Aren't all these synthetic-bristled brushes the same? They all feel the same to me!" And I learned that these are made from a different material. Your regular synthetic-bristled brush is made out of nylon fbers, but these are made out of a special type of material that's proprietary (so although the science geek in me was trying to annoy the PR staff into telling me what the material was, it turns out that they didn't know exactly either) and unique to MUFE at the moment. So these brushes are indeed something unique!
MUFE's new brushes utilize a new synthetic fiber that makes their brushes softer than the typical synthetic brush.
In order to test this out, I thought there was only one fair way to do this - and that is to bring out all my synthetic-bristle blush and highlighter brushes, and do a brush-on-brush comparison, to see which one was really the softest! And after much digging around my stash, I got these. I included the Hakuhodo Kokutan Blush Brush S because it was partially synthetic (a mix of synthetic bristles and blue squirrel hair):
Almost all my synthetic-haired blush and highlighter brushes, for the sake of comparison!