What is your favorite foundation? I've used MAC Studiofix and Laura Mercier powder foundation and I'm starting to think that they are making my skin breakout. I've been getting blackheads on the chin area and I don't normally get them that much. I've read that if you have a breakout prone skin you should use a foundation powder because the sponge collects bacteria easily. I'm looking for a liquid or powder foundation to try for a combo skin. Any suggestions?