I'm pretty happy with a new Neutrogena product called Ultra Sheer Dry-Touch Sunblock...but it's the chemical kind of sunblock, not zinc oxide. It's SPF 55 and blocks UVA & UVB rays. I think it comes in SPF 70 too. It's not greasy at all, which I like a lot, and it says "gentle enough for even sensitive skin" on the tube.

I have brown blotches on my face, which is called Melasma or Chloasma (aka "the mask of pregnancy" except I'm not pregnant...it's from the Pill). Anyway, these brown marks typically get really dark from sun exposure even when I'm wearing lots of sunscreen. But so far, this Neutrogena stuff is doing a pretty good job at keeping the brown spots under control...better than anything else I've tried. But I want to try Dermatone too...it sounds even better!