Taking care of your skin is essential all year round, especially during sunny months. Too much sun can lead to skin cancer, the most common cancer in the U.S. Protecting your skin is key to enjoying the outdoors safely.
Dr. Jimena Cervantes, a physician at the University Health Skin Clinic, explains some vital points about sun protection.
What Happens When You Get Sunburned?
Sunburn is your skin’s reaction to too much UV exposure. Just one sunburn can increase your chances of getting skin cancer and speed up aging. Research shows that repeated sunburns significantly raise the risk of melanoma, the deadliest form of skin cancer. The good news? You can prevent sunburn by using sunscreen, seeking shade, and wearing protective clothing like hats and sunglasses.
How Often Should You Reapply Sunscreen?
Apply sunscreen at least 15 minutes before heading outside. Use about one ounce (a shot glass amount) for your body and a teaspoon for your face. Reapply every two hours while outdoors, or more if you’re swimming or sweating. Remember, UV rays can still affect you when driving or sitting near windows, so daily sunscreen use is crucial.
What Does SPF Mean?
SPF, or sun protection factor, measures how well sunscreen protects against UVB rays, which cause sunburn. Dr. Cervantes recommends choosing a broad-spectrum sunscreen with at least SPF 30. This will block about 97% of UVB rays, though you still need to reapply every two hours for proper protection.
What to Look for When Buying Sunscreen?
- Choose SPF 30 or higher.
- Select broad-spectrum protection (both UVA and UVB).
- Consider water-resistant formulas if you plan to swim or sweat.
Applying Tips for Sunscreen
- Use lotions or creams for the first application to ensure even coverage.
- Sprays and sticks are convenient for reapplying.
- Don’t forget areas like your eyelids, ears, and lips—use SPF lip balm.
What Is Tinted Sunscreen?
Tinted sunscreens offer UV protection and help shield against visible light, which can cause hyperpigmentation. Dr. Cervantes suggests them for a natural look and better overall skin protection.
Is Sunscreen Necessary for All Skin Types?
Yes, everyone needs sunscreen! While lighter skin burns more easily, darker skin also faces risks like premature aging and skin cancer. Using sun protection daily can prevent uneven skin tone and hyperpigmentation, making tinted sunscreens especially beneficial for some.
Does Makeup with SPF Suffice?
No. Makeup with SPF generally doesn’t provide enough protection on its own. It’s best to apply a dedicated sunscreen first and then your makeup. When reapplying, consider using sunscreen sticks or powders for convenience.
Does Sunscreen Expire?
Yes, sunscreen does have an expiration date, often up to three years. Store it in a cool, shaded area. If it smells off or has changed texture, it’s time to toss it.
Is Sunscreen the Only Way to Prevent Skin Cancer?
No, it’s just one part of a complete skin-care strategy. Combine sunscreen use with these habits:
- Seek shade, especially from 10 a.m. to 4 p.m.
- Wear protective clothing, including long sleeves and wide-brimmed hats.
- Use sunglasses to protect your eyes and the surrounding skin.
By using multiple methods, you can lower your risk of skin issues and keep your skin healthy over time. Think of sunscreen as a crucial layer, but don’t rely on it alone.
For any questions or concerns, the primary care team at University Health is ready to help you choose the best options for your skin needs.
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