Do I need to wear sunscreen daily?

Dr. Ellen Marmur, MD
These days it's so easy to incorporate sunscreen into your daily routine that there's no excuse not to wear it (at least from the collarbone up) every single day. It's difficult to find a daily moisturizer without an SPF, or sun protection factor, of at least 15. Granted, it is incredibly confusing to know what kind of sun protection product to use (Do you need sunblock or sunscreen? SPF 15 or 50?), but one thing is clear: your daily moisturizer must contain sunscreen or sunblock, and you must wear it. If the fear of skin cancer isn't enough, consider that researchers estimate that UV exposure accounts for 80 percent of the skin's aging process (sun spots, wrinkles, dry skin). In a recent survey of more than one thousand American women, more than a third believed the sun to be the number one most negative photoaging factor. But only 45 percent say they wear SPF daily to fight the signs of aging, while more than 50 percent reported using antiaging products to correct those signs. That's like closing the barn door after the horse has escaped - it's too late. The best prevention against photoaging is wearing sunscreen every day. It is the most powerful antiaging product on the market bar none.

Simple Skin Beauty: Every Woman's Guide to a Lifetime of Healthy, Gorgeous Skin
Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

You should put on sunscreen every day, even if you're only planning to spend short periods of time in the sun. Ultraviolet A (UVA) rays can penetrate glass windows, meaning you're at risk while sitting close to a window, whether in a car, at home or in the office. Also up to 80 percent of ultraviolet rays can pass through clouds, so you should wear sunscreen even on a cloudy day. Talk to your dermatologist for more information.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.