Well I've got both the Careblend and Studio Fix powders. Careblend- Blends easy, melts into skin so they are one. Feels light on and you can apply and apply and itll never get cakey. Light to medium I say as you layer it. Perfect for over foundation and alone it will even you out sort of and cover up very minimal amount. But looks beautiful. Kept me matte all day even with sweat. Studio Fix Powder- I used it over my fav foundation F&B from MAC. It blended well, sweat proof well for me. It is a fuller coverage and can be worn alone and will cover up almost everything. Over foundation even as light as F&B is seemed a little cakey but after a few min of wearing it, it looked beautiful. I even cleaned in the makeup not by choice and was sweating like a pig. I didn't touch up at all, all day! When I took it off just the finish was still beautiful and looked like one with my skin. But my skin was a little oily looking. I liked both! I prefer Careblend with foundation on. I prefer Studio fix by itself. Out of the two I'd say Careblend! It is a dream.