Summer skin facts you may not know

The basics of summer skin care are pretty basic, right? But even things that seem very simple, like wearing sunscreen, may be more complicated than you think. For example, did you know that SPF 30 sunscreen incorrectly applied only gives the benefits of SPF 20?

It's true. In fact, the reason most experts recommend sunscreens with higher SPFs is because they realize most people don't use them properly. The biggest mistake is not using enough, and a good rule of thumb to make sure you're doing it right is 1 ounce, or the amount needed to fill a shot glass, is what the average person needs to cover all exposed areas of skin.

Other little-known summer skin facts include clothing with built-in UVA protection, and free skin cancer screenings available in many areas.