The top 5 facts about the sun and broad spectrum sunscreen

5. Almost 90% of the visible changes commonly attributed to aging are caused by the sun's ultraviolet (UV) rays. (Source: Skin Cancer Foundation) Even on a cloudy day, up to 80% of UV rays can pass through the clouds! (Source: American Academy of Dermatology)

4. There are two types of UV rays: UVB (the chief culprit behind sunburn), and UVA (which cause fine lines and wrinkles, leathering, and sagging). The best sunscreens provide "broad-spectrum" protection, so they protect against both UVA and UVB rays.

3. Your skin's epidermis is literally paper-thin, so UV rays can pierce through it easily. UVA rays penetrate the deepest, all the way to your dermis, where blood vessels and nerves are found.

2. Thinking of getting a "base" tan before your beach vacation? Think again. There's no safe way to prep the skin for UV rays. Any time the skin tans, it's a sign of injury. The only safe way to spend a day at the beach is to use sunscreen and stay protected from the sun.

1.Only 14%** of respondents in a recent survey by the American Academy of Dermatology wear a SPF moisturizer as part of their daily skin care.

*Source: Skin Care Foundation

**Source: American Academy of Dermatology

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