I'm using Clinique City Block spf 40 atm - as recommended by BBBee, I think. I like it - goes on pretty sheer, and non greasy. Seems to do the trick. Doesn't clog up my face. Lightly tinted, but not so's you'd notice. The only thing I'm not sure about is how long the protection lasts, ie if I put it on first thing in the morning before heading off to work, should I really be reapplying it later on, or will it still be working at lunchtime?