Sunscreen is a crucial part of any skincare routine, offering protection against the harmful effects of UV radiation, which can cause skin damage, premature aging, and increase the risk of skin cancer. However, despite its importance, there are still many misconceptions about sunscreen that can prevent people from using it properly. Dr. Jeremy Udkoff, dermatologist at Mt. Lebanon Dermatology, addresses some of the most common sunscreen myths and provides expert advice on choosing the right SPF for your skin.
Myth #1: Sunscreen Isn’t Necessary on Cloudy Days or During Winter
The Truth: UV rays can penetrate clouds and still cause skin damage. In fact, up to 80% of UV rays can pass through clouds, and snow or water can reflect UV radiation, increasing your exposure. Whether it’s a bright sunny day or a gray, overcast sky, sunscreen should be part of your daily routine all year round—especially in the winter, when snow can reflect UV rays and increase your exposure.
Recommendation: Apply sunscreen daily, even if the weather isn’t sunny. Choose a broad-spectrum sunscreen with an SPF of 30 or higher to protect your skin from both UVA and UVB rays.
Myth #2: Higher SPF Means Better Protection
The Truth: While it’s true that SPF (Sun Protection Factor) indicates the level of protection against UVB rays (the type that causes sunburn), the difference in protection between high-SPF sunscreens isn’t as significant as you might think. For example, an SPF 50 sunscreen blocks about 98% of UVB rays, while an SPF 30 blocks about 97%. The difference is minimal, but the higher SPF products can give you slightly more protection.
Recommendation: SPF 30 is sufficient for most people if applied properly and reapplied every two hours, or more often if sweating or swimming. Higher SPF sunscreens are recommended for those with fair skin, a history of skin cancer, or those who spend extended time outdoors.
Myth #3: Sunscreen Only Needs to Be Applied Once a Day
The Truth: Sunscreen needs to be reapplied regularly, especially if you are sweating, swimming, or towel-drying. Even water-resistant sunscreens lose their effectiveness after some time in the water, and they can wear off throughout the day due to sweat, rubbing, or touching your face. Reapplying every two hours (or more frequently if necessary) ensures continuous protection.
Recommendation: Reapply sunscreen every two hours and immediately after swimming or heavy sweating. Carry a travel-size bottle or a sunscreen stick in your bag for easy reapplication throughout the day.
Myth #4: Sunscreen Is Only Necessary for Fair Skin
The Truth: Everyone, regardless of skin tone, is at risk for sun damage. While people with fair skin are more likely to burn and develop skin cancer, those with darker skin are also vulnerable to UV radiation, though they may not burn as quickly. Prolonged UV exposure can still cause damage, aging, and increase the risk of skin cancer in individuals of all skin types.
Recommendation: All skin types should use sunscreen. People with darker skin tones may want to opt for mineral-based sunscreens with zinc oxide or titanium dioxide, which tend to leave less of a white cast compared to chemical sunscreens.
Myth #5: Sunscreen Is Only for the Beach or Pool
The Truth: Daily sunscreen use should be part of your skincare routine even when you’re not lounging by the pool or spending the day at the beach. UV radiation can damage your skin even when you're in the car, walking down the street, or sitting near windows. UVA rays, in particular, are responsible for premature aging and can penetrate through glass, putting you at risk for skin damage indoors.
Recommendation: Apply sunscreen every day as the last step in your skincare routine, especially if you'll be outside for any period of time. Even indoor workers and those who drive frequently should make sunscreen a daily habit.
Myth #6: Sunscreen Doesn’t Expire
The Truth: Sunscreen has an expiration date, and using expired sunscreen means you’re not getting the protection you need. Most sunscreens are effective for up to three years, but it’s important to check the expiration date on the packaging. Heat, humidity, and improper storage can reduce the effectiveness of the product.
Recommendation: Always check the expiration date on sunscreen bottles before using them, and replace them as needed. Store sunscreen in a cool, dry place to maintain its efficacy.
Schedule an appointment today to discuss your sunscreen needs and get personalized advice for keeping your skin healthy and protected year-round.
📞 Call us now (412) 563-0217 or visit our website to book your appointment!
