SPF numbers only regulate the protection against the UVB rays or as I tell my patients the “burning” rays. What are even more important in our concern with sun exposure are the UVA rays or the “aging” rays which the SPF does not address.
The FDA has recently come out with new label guidelines to address the issue of broad spectrum protection. They are targeted to appear in 2012. Consumers should be careful when choosing their sunscreens because not all sunscreens are created equal.
In our office we advocate the physical sun blocks zinc oxide and titanium dioxide. They are gentle to the skin and provide the needed Broad spectrum protection from both the UVB and the UVA rays.
If you are looking at the SPF number we suggest a 30+ and then read on to make sure they contain zinc or titanium or both, so that they can be considered broad spectrum (protections against both UVA and UVB rays)
Water resistant or water proof—always re-apply no matter what the label says. You will find that water resistant sunscreens usually feel a bit thicker. We suggest no matter what, if you are outside for extended periods, that you reapply your sunscreen at least every 2 hours.
Sunscreen is one of those products that you should never leave your home without applying, no matter the time of year. Beyond that, make sure the quality of your sunscreen is made to do the job. While the new FDA labeling requirements will be helpful to consumers, do not wait another year to choose your sunscreen wisely.
