4. You Have to Reapply Often during the Day

I wish someone would invent sunscreen that lasted for 24 hours, but alas, that hasn’t happened yet. Most products require reapplication about two hours after you originally put it on, and then every two hours thereafter for as long as you’re outside. Once two hours has passed, the product stops being so effective. Likewise, if you get wet or towel off, you need to reapply.

Make Sure You’re Wearing Enough Sunscreen
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