Skin Cancer
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Sunblock

How often should sunscreen be applied?

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Wiki User
2008-07-03 16:36:05

hi,

sunscreens are usually tested for 80 minutes of efficacy.

for example, if a company was making a SPF 15, the SPF would

have to be at or above 15 at minute 1 and minute 81.

most sunscreens should be reapplied every two hours, and it's

about 1oz (a shot) of sunscreen you should be using for your whole

body each application.

have fun in the sun and be safe!


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