Five myths about sunscreen
Tip of the week...
▪ All sunscreens work the same way. Actually, some use chemicals that absorb damaging rays and others—like zinc oxide—physically block the rays.
▪ SPF 100 is twice as effective as SPF 50. Not at all true: SPF 50 blocks 98 percent of UVB rays, while SPF 100 blocks 99 percent. You get adequate protection from SPF 30. But make sure you’ve chosen a “broadspectrum” sunscreen, meaning it also blocks UVA rays. Those, too, pose a cancer risk, and they cause long-term skin damage.
▪ Dark skin doesn’t need it. People of color are less susceptible to sunburn, but skin cancer is still a danger.
▪ Sunscreen goes on the moment you hit the beach. That’s actually too late. Apply it 30 minutes earlier, so the skin can absorb it.
▪ You’re safe behind a car window. It’s true you won’t get burned. But glass doesn’t filter out UVA rays.