Sunscreen: What you need to know

Sunscreen: Your Skin's Best Friend

Here's the Right Way to Apply Suncreen

Applying sunscreen seems simple-just smooth it on and go. But to get the right UV protection, you'll need to do it right:

Apply sunscreen evenly and let it settle into your skin for about 15 minutes before going out into the sun.
Don't skimp. Most people don't apply nearly enough sunscreen to get the SPF factor shown on the label. According to University of Virginia Health System dermatologist Mark A. Russell, M.D., an average-size adult needs a shot-glass-size dollop of lotion to adequately cover the face, neck, trunk and extremities. For sunscreen sprays, follow label directions.
Apply sunscreen from your toes to your hairline. If your hair is thinning on top, wear a hat.
Follow all label directions for frequency of reapplication, including before or after swimming or sweating.

Here's what everyone should know about sunscreen, according to Russell:

Choose a sunscreen that protects against both UVA and UVB rays. Each of these forms of ultraviolet radiation can damage skin cells, cause premature aging and raise the risk of skin cancer.
A sunscreen rated SPF 15 is fine for brief exposure to the sun. But for any significant exposure to direct sunlight-whether from water skiing, outdoor labor or lounging in the backyard-choose SPF 30 or higher. SPF refers to sun protection factor; the higher the number, the more your skin is protected from the sun.
Self-tanners don't necessarily protect you from the sun-you'll still need to use sunscreen.
Everyone can benefit from applying sunscreen. Some skin types rarely burn and easily tan. "While it is much more prominent among light-skinned Caucasions, I've seen skin cancer in all skin colorations," Russell says. "And by using a sunscreen even people with darker skin can reduce the premature aging caused by the sun."

Ensure children are protected. Severe sunburn is not only painful, it can also set a child up for skin cancer later in life.