What's the reason for putting on sunscreen?

A. 1

I understand that the blocking rate is not 100%

Lady 7 years ago 0

OK

A. 2

I have to put it on every 2 hours, but it might be because I didn't do that
When I sweat, the sunscreen disappears

Lady 7 years ago 0

OK

A. 3

There's a lot more to apply at once than I thought
You have to apply it as thick as a 500 won coin

Lady 7 years ago 0

OK