A lot of people like Monistat, but it really messed up my skin when I used it.
I use Smashbox Photo Finish Light. It does a good job at helping my makeup apply more evenly, and it makes my foundation last a bit longer. I would love to find an alternative, though, since it's getting difficult for me to spend $36 on a new one every few months. /emoticons/[email protected] 2x" width="20" height="20" />
I like Hard Candy's Sheer Envy primer as well as Photo Finish, but my favorite ever is Tarte's Clean Slate. It's like the others in that it's Dimethicone-based, but it has a sort of tacky finish to it (I don't mean this in a bad way.....I can't really think of the right word to describe it). Even though it's completely transparent, I can still tell it's there and that it's helping my makeup stay on all day. Love it, it's the best!