2. Understand Sun Screen

了解防晒品

Sunscreen doesn't actually work the way you think. First of all, most of them don't do anything and so you're wasting your time. If you're not buying a sunscreen that contains both zinc oxide and titanium dioxide, you're wasting your money. You also need to make sure you understand what an SPF rating is. SPF isn't like a sunscreen power level, but rather what determines how long the sunscreen will last before you need to reapply it.

防晒霜实际上跟你想象的并不一样。首先，大多数防晒霜并无任何效果，因此你是在浪费时间。如果你没有购买既含氧化锌又含氧化钛的防晒霜，那么你就是在浪费金钱。你也需要确定自己理解SPF值是什么。SPF并不说明防晒功效的等级，而是决定涂一次的防晒效果能维持多久。