Hi!
I have a tendency to breakout with sunscreen products also ... I have found a great foundation from Tarte with spf 20 that is not only a marvelous lightweight foundation, but doesn't bother my skin at all. I bought it at Sephora, don't know where else it is sold. Also, Clinique has some great non-oily sunscreen products that are marvelous. My daughter has acne and she uses the Clinique spray on her face and it doesn't bother her skin. The Clinique is a bit more reasonably priced, as the Tarte foundation runs around $50 for a six to nine month tube (depending on how often you use it). Hope you find something as sunscreen is a necessity these days, isn't it?
Best of luck,
SuperNanna