These are some foundation brushes, concealer brushes and powder brushes here that I want to talk about.
Foundation brush have two types of brush which you can refer to the picture given below. For instant there are three types of foundation brush which are for liquid, cream and mineral powder.
Secondly, concealer brush got two types of brush which you can use for undereye and also blemish. Thirdly, powder brush which you can use to apply powder to all over your face or T-zone part.
I hope below will help you at least to identify what brush you are looking for and so on.