I'm a fan of City Block SPF40 and plan to try Anthelios as recommended on the Roche-Posay thread, the tinted moisturiser with SPF50.
My question - does anyone scientific know how often you need to appy these creams for them to have any effect? And another - I'm 31, will I be freezing my skin as it is now and preventing any more wrinkles from appearing? I sunbathed quite a bit in my twenties including some horror burning.