Myth #4 Sunscreen applied in the morning will keep me protected throughout the day

This is what you have been always been doing, isn’t it? You apply sunscreen in the morning and then don’t bother to retouch it the entire day. This will not provide any kind of protection as sunscreen dries away and stops working after a few years. You should reapply sunscreen at least every two to four hours when out in the sun. If you get into water, reapplication should be more frequent.

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