When should I use sunscreen?

Every day if you are outside. The sun emits harmful UV rays year-round. Even on cloudy days, up to 80 percent of the sun's harmful UV rays can penetrate your skin. Snow, sand and water increase the need for sunscreen because they reflect the sun's rays.

How much sunscreen should I use, and how often?

Use enough sunscreen to generously coat all skin. If your face, ears, arms or hands are not covered by clothing, apply sunscreen. Apply sunscreen to dry skin 15 minutes BEFORE going outdoors. Skin cancer also can form on the lips. Apply sunscreen on your lips as well to protect yourself. Reapply sunscreen after swimming or sweating.

Broad-spectrum sunscreens protect against both UVA and UVB rays. What is the difference between the rays?

Sunlight consists of two types of harmful rays that reach the earth UVA rays and UVB rays. UVA rays (or aging rays) can prematurely age your skin, causing wrinkles and age spots, and can pass through window glass. UVB rays (or burning rays) are the primary cause of sunburn and are blocked by window glass.

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