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8 do’s and don’ts for sunscreen use
3. Go ahead and use last summer’s.Sunscreens are required to retain their original strength for at least three years. Not sure when you bought yours? Look for an expiration date—some sunscreens include one. If it’s passed, toss out the sunscreen. There are also visible signs that the sunscreen may no longer be good, such as a change in its color or consistency.
4. Use it on cloudy days too.Even when it’s overcast, 80 percent of the sun’s rays can still reach your skin.
5. Wait until you’re in the sun. Apply sunscreen to dry skin 15 minutes before heading outdoors.
6. Make it one and done.Reapply sunscreen every two hours (or as often as the label says) and after swimming or sweating.
7. Assume that a higher-number SPF lasts longer. Sunscreens last the same amount of time regardless of their SPF number.
8. Overlook other sun safeguards.When you’re out in the sun, don’t rely solely on sunscreen to protect your skin. Wear protective clothing, such as a long-sleeved shirt, pants, a wide-brimmed hat and sunglasses. And be a shade seeker too.
Did you know that certain medicines can make your skin more sensitive to the sun? Learn more about them and how to protect yourself.