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Don’t Skip the Sunscreen

By Dr. Elizabeth Brennan, MD, FACEP June 26, 2015

After Hours Pediatrics Urgent Care - Located on Jog and Lantana Road 

When selecting an appropriate sunscreen, it is important to understand the differences between the types of ultraviolet radiation. UV-B light is that which causes sunburns. Sun Protection Factor (SPF) is a measure of efficacy against UV-B rays.

In contrast, research over the past few years has suggested that UV-A light is the most likely culprit in the development of skin cancer. It also plays a role in aging skin. When shopping for sunscreen, there is a star rating system that measures a product’s protection against UV-A light.

Parents should purchase broad-spectrum products that will protect against both forms of ultraviolet light.

In general terms, the higher the SPF, the more protection a product offers. Products with an SPF rating of 30 block out about 93% of all UV-B rays. Products with an SPF 50 block out about 97%. About one ounce should be applied prior to exposure and then every two hours to ensure maximal protection. Applying sunscreen as suggested, a typical bottle should last about two days.

Infants younger than one year should be kept out of direct sunlight. Of course, limiting sun exposure during peak times, wearing hats and sunglasses, and wearing clothes that do not allow much light through can also aid in protecting from overexposure to the sun’s rays.

Make it a healthy summer and don’t skip the sunscreen!    

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