I've been using the Biotherm Sun vivo sunblock before I tried this Laneige one (they gave me lots of samples after I wiped their counter of their waterbank essence). I never use waterproof/water-resistant sunblock more than a few hours because they all WILL give me BAD breakouts and I only use them when I go to the pool. Biotherm was the only one that didn't (not that bad anyway) for the space of a few hours. I was sceptical since nothing had quite worked before.
I tried this and was quite happy that it didn't give me small pimples (which Biotherm Sun vivo will if you use it over a few hours) when I came back from the pool.
It was super greasy and left a white cast but I didn't care... cos nobody was going to see my face in the water.
But most of it washed off after 12 laps and it didn't provide as much sun protection as Sun Vivo (which will not even let me skin darken).
It was easy to remove with deep cleansing oil and I didn't get any small bumps. But I don't think it served its purpose as a sunblock.... not for swimmers anyway.