Sunscreen is an essential step in protecting your skin from the harmful effects of the sun’s ultraviolet (UV) rays. UV radiation can cause a range of skin damage, including sunburn, premature aging, and an increased risk of skin cancer. Regular use of sunscreen with a high SPF (sun protection factor) helps block harmful rays, reducing the risk of these issues.
In addition to protecting against UV radiation, sunscreen also helps prevent hyperpigmentation, which can lead to dark spots and an uneven skin tone. It plays a crucial role in preventing skin dehydration, keeping your skin looking fresh, youthful, and healthy.
To maintain effective protection, it’s vital to apply sunscreen regularly, especially when spending extended periods outdoors or engaging in activities that involve water or sweating. The American Academy of Dermatology recommends using a broad-spectrum, water-resistant sunscreen with an SPF of 30 or higher. Be sure to reapply every two hours or immediately after swimming or sweating to ensure continued protection.
Reapplying sunscreen is crucial because its effectiveness can diminish over time, particularly when exposed to water, sweat, or physical contact that may rub it off. Without reapplication, your skin becomes vulnerable to UV damage, which can lead to sunburn, premature aging, and an increased risk of skin cancer.
Sunscreen works by either absorbing or reflecting UV radiation before it can penetrate the skin. However, over time, sunscreen can break down, and UV radiation can degrade the ingredients, reducing its effectiveness. To maintain adequate protection, reapplying sunscreen every two hours is key. This is particularly important when you’re spending time in the sun for extended periods or engaging in water-related or sweaty activities that wash away sunscreen.
Keep in mind that for each application, the recommended amount of sunscreen for an adult is about one ounce (roughly a shot glass full). By using enough product and reapplying every two hours, you can effectively shield your skin from the harmful effects of UV radiation and maintain healthier, more resilient skin.