May is National Skin Cancer Awareness Month, and with summer right around the corner, it’s important to remember that exposure to ultraviolet (UV) radiation from the sun can increase your risk of developing skin cancer.
Sunscreen, when used properly, helps decrease the amount of UV radiation to the skin. But not all sunscreens are created equal. When choosing a sunscreen, look at the SPF, or sun protection factor, number. We recommend using sunscreen with an SPF of at least 30. Anything under 30 is not as effective, and those with SPF higher than 30 are not significantly more effective.
It’s important to note that the SPF number only applies to protection from UVB rays. The sun’s UVA rays are also very damaging to the skin, so it is crucial to use sunscreen that protects from UVA as well. These sunscreens will be labeled as “broad spectrum.” Sunscreen typically lasts for only 2-3 hours, so it needs to be reapplied throughout the day when outdoors. If you are planning on swimming or will be sweating, the sunscreen used should also be water resistant and reapplied after 40 minutes.
Exposure to sun and artificial tanning is the most preventable risk factor for all skin cancers, including melanoma. Here’s a quick reference list of the most important ways to safely enjoy this time of year:
Other Sunscreen Tips
Sunscreens work best when applied to dry skin 15 to 30 minutes BEFORE going outdoors. When using sunscreen, be sure to apply it to all exposed areas and pay particular attention to the face, ears, hands and arms. Coat the skin liberally and rub it in thoroughly — most people apply only 25 to 50 percent of the recommended amount of sunscreen.
One ounce, enough to fill a shot glass, is considered the amount needed to cover the exposed areas of the body properly. Don't forget that lips get sunburned, too, so apply a lip balm that contains sunscreen with SPF of 30 or higher.
Get more tips and information from Dr. Rothman by listening to this Roswellness Radio show on the topic of skin cancer prevention and indoor tanning.