Makeup powders is a wide collection of different products, that can be applied to your face, usually in terms of makeup, in a powdered form. This includes but is not limited to, setting powders, blushes, contours, loose powder, eyeshadows, bronzer etc. People may prefer having their makeup in powder form for many reasons, for example, people who are prone to oily skin would prefer powdered makeup because it would mattify your face. Another reason people may prefer makeup powder is it helps to set your foundation/concealers so that it won't migrate into any lines or slide down off your face. There are many reasons why some may put powdered makeup on their face, but at the end of the day, it really just depends on your personal opinion about them!