Clarins UV Plus Protective Day Screen is a block that goes over your moisturiser and under makeup. Its factor 40, (the higher the better for me, a freckly redhead), non greasy, and seems to work a bit like a primer. Looks good, and I think works.
Their Factor 30 face anti-wrinkle suncream is good too, but if you wear makeup (like me) its a bit greasy.
Am briefly flirting with Becca SPF primer (factor 30) but not that impressed - seems to be drying my skin out. I was seduced by the boast of Australian sunscreen technology.