The instructions say this brush is for blush. Some people say they use it to blend foundation. It sucked up my foundation and didn't deposit any on my face. I felt like I was wasting tons of product. I tried it for blush, but the shade I had was invisible no matter what brush, so perhaps it's better with the right shade of blush. Nice and soft, but not a lot of movement in the bristles.
We are sorry for any confusion. Here is the actual partial description from the product on it's use: "Use it to blend blush with precision such as contouring cheeks, or to apply facial masks, or to apply a slightly heavier coverage of Mineral Foundation to those areas that need special attention for concealment."
This is it's use, for contouring, masks and heavier foundation application for the little imperfections on the skin. So you actually don't want a lot of movement in the bristles. Great for under eye concealing as well. Hope this helps with your use going forward.