Sun Care

Sun care is extremely important for maintaining healthy skin. Learn more about sun care at HowStuffWorks.

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Does sun exposure heal acne?

You may have heard of the free, readily available acne remedy: the sun. Unfortunately, this is one acne treatment you probably shouldn't try.

What do SPF numbers mean?

When sunscreen with SPF 70 hits the market this summer, you might be tempted to slather it on and bake. Before you do, learn what SPF numbers really mean.

How do sunless-tanning products work?

How do sunless-tanning products work? Which is the most effective: self-tanning lotions or tanning pills?

What is sunburn?

Sunburn is dangerous and painful, but what is happening in your skin cells as they react to sunlight and UV rays?

How Sunburns and Sun Tans Work

There is something mysterious about the sun and skin: Why do some people tan, and others burn? What's happening, and why does sunscreen prevent it? Find out exactly what the sun does to your skin.

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