• Another Catgirl
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    5 months ago

    I thought that clothes already block UV rays by being optically opaque!

    • GreyEyedGhost@lemmy.ca
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      5 months ago

      A cotton t-shirt has a SPF of about 6. It will help, but we can do better, even without melanin-infused clothing.

      There are also UV transparent bikinis, for tanning without tan lines or nudity.