Sunscreen products that pass a new FDA test will now say "broad spectrum, " followed by the product's SPF, to indicate its effectiveness for both types of rays.

WSJ: The Myths of Daily Sunscreen

The Environmental Working Group says this ingredient does not make sunscreen more effective, and until definitive research is available, consumers should avoid sunscreen products containing retinyl palminate.

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New guidelines by the Food and Drug Administration aim to protect consumers from skin cancer through greater testing and clearer labeling on sun-protection products, including cosmetics with sunscreen.

WSJ: The Myths of Daily Sunscreen