SPF what? Your Guide to Decoding Sunscreen

If you’re planning to spend time outdoors, you may bring along a few essentials, like a hat or sunglasses. But before you head out, there’s one thing you should never forget — sunscreen. Whether it comes in a can or a tube, proper sun protection can help you avoid a sunburn.

Getting a sunburn, even a minor one, damages your skin. The best way to protect yourself from the sun’s rays is to wear sunscreen.

The sun produces two types of rays — ultraviolet A (UVA) and ultraviolet B (UVB). UVB rays cause sunburn, while UVA rays lead to deeper skin damage over time, like wrinkles, age spots and skin...