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It's important to apply sunscreen when you go outside in the sun, but you should also make sure that you're using the right type -- and applying it properly.
Your sunscreen should:
If you'll be inside most of the day and not exposed to hot sun, an SPF of 15 or higher may offer enough protection.
When applying sunscreen, it's best to put it on before you get dressed in the morning to make sure your entire body is covered -- especially the areas that will be exposed to the sun.
Otherwise you should rub it in around 30 minutes before you go outside, then reapply every 2 hours -- even when it’s cloudy.
And since sunscreens aren't waterproof, be sure to reapply after swimming or vigorous exercise.
The amount of sunscreen per application may vary, but around 30ml should be enough, according to the Skin Cancer Foundation.
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