Sunscreen

Tuesday, July 24, 2012

Sunscreen is an important staple to have around, particularly during hot summer months, but most people do not use it correctly. In todays 60 Second Housecall, Dr. Edward Hill gives us some important information about sunscreen use.

Dr. Hill:

Sunscreen is the most important skin-care product available to prevent wrinkles and skin cancer, but most people do not use it correctly.

The SPF measures the amount of UVB absorption, but there is no method of reporting the UVA absorption.

The only way to determine if a sunscreen protects against both types of radiation is to look at the ingredients. A good broad-spectrum sunscreen should have an SPF of at least 15 and contain avobenzone, titanium dioxide or zinc oxide.

Sunscreen should be applied liberally enough to all sun-exposed areas that it forms a film when initially applied. It takes 20 to 30 minutes for sunscreen to be absorbed by the skin, so it should be applied at least half an hour before going out in the sun and reapplied often, at least after every two to four hours in the sun.

Sunscreen should also be reapplied after swimming, excessive sweating or toweling.

For North Mississippi Medical Center, Im Dr. Edward Hill.