Are you applying your sunscreen correctly, and are you using enough of it? Maybe not, according to Dr. Ian Smith. “We don’t use enough sunscreen, and that’s a problem,” Dr. Ian says.
Take Dr. Ian’s quiz to see if you can answer the following questions correctly: How much sunscreen should you be applying? How often should you reapply? And, do you need to rub in spray sunscreen?
Plus, watch until the end of the video to learn his “shadow trick” for determining if you need to reapply.
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