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Consumer Reports: Putting Sunscreens to the Test

Sunscreen is essential to guard against sunburn, skin damage and cancer. Most dermatologists recommend using a sunscreen that delivers an SPF or sun protection factor of 30 of higher. Consumer Reports tested a wide variety of lotions and sprays.

When you choose a sunscreen, most people check the SPF. That’s supposed to indicate the amount of protection you get from the sun’s UVB rays, which cause sunburn and increase the risk of skin cancer.

Consumer Reports tested 34 sunscreens to see if they deliver.

Technicians applied sunscreen to panelists’ backs and had them soak in a tub for 40 or 80 minutes, depending on the product’s water-resistance claim. Then the area was then exposed to UVB light.

The next day, the test area is examined for redness. The tests revealed a cause for concern.

“Almost a third of the sunscreens we tested had SFP's below what they promised. If you aren't getting the protection you think you are, that could be a problem,” said Trisha Calvo of Consumer Reports.

For example, Banana Boat Sport Spray claims an SPF of 50 plus, but only averaged an SPF 24. And Yes To Cucumbers Natural claims an SPF 30 but averaged only 14.

You also want a sunscreen that’s effective against UVA rays, which are linked to skin damage and cancer. Sunscreens that promise “broad spectrum” should provide both UVA and UVB protection.

But in Consumer Reports’ lab tests, some of the sunscreens did not adequately guard against UVA rays.

“The worst is this Aloe Gator Gel. It really fell down when it came to UVA protection,” Calvo said.

Consumer Reports did find 15 sunscreens to recommend. These are named Best Buys: No-Ad Sport SPF 50 lotion for $10, Wal-Mart’s Equate brand, Sport Continuous Spray SPF 30 for $8 and Ultra Protection lotion SPF 50 for $9.

Consumer Reports included several sunscreens that contain minerals as their active ingredients — either zinc oxide or titanium dioxide. None of the five are recommended. They did not deliver adequate broad spectrum protection.

You can get more information on Consumer Reports’ sunscreen tests here.

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