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Originally Posted by xepherys
For most people, even many fair-skinned ones, burning once or twice at the beginning of the summer will keep you from really burning again as you stay out in the sun.
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I thought that the 'base tan' was a myth.
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Originally Posted by onesnowyowl
Why else would you have varying degrees of protection, up to 45 SPF? One might notice there is no 100 on the scale--or at least I did.
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An SPF of 4 means that, if you would ordinarily burn in 15 minutes, you will now burn in 1 hour (4x the time). 100 SPF is conceivable, as well as 150 SPF. Or you could dip yourself in liquid latex.