• NιƙƙιDιɱҽʂ@lemmy.world
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    3 months ago

    >be me
    >white as everliving fuck
    >put on 60 spf sun screen, as you should, and set a timer for an hour and a half to reapply, earlier than the recommended 2 hours
    >alarm goes off, reapply
    >STILL GET SUNBURNED

    mfw

      • Zetta@mander.xyz
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        3 months ago

        The difference between SPF 60 and 100 is like 1.1% better UV blocking, anything over SPF 50 is in a practical sense nearly useless.

        For instance SPF 30 blocks 97% of UVB rays, is it worth paying more and slathering more potentially harmful (to the environment) compounds on your skin for 98% blocking? I think not.

        • drosophila@lemmy.blahaj.zone
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          3 months ago

          I used to think the same thing, but the thing is we don’t care about the energy that goes into the sunscreen, we care about the remaining percent that goes into the skin. If you go from a sunscreen that absorbs 98% of the sun’s energy to one that absorbs 99% you are halving the amount of energy your skin is exposed to.

          If you’re still getting burned with 98% absorption, then increasing that number by 1% would actually make a huge difference. And that’s without even considering things like having a safety margin for improper application.