Blue Lizard is a great product I have used for a few years. It is a good sunblock, doesn't irritate my skin and doesn't need to be replenished as often as some.
The Blue Lizard SPF 30+ Face Sunscreen is a great, non-greasy sunscreen that is easy to get rubbed in without much trouble. Great for even sensitive skin. I've tried the Sensitive skin and Sport formula as well and would recommend those as well!