SPF 15 lip balms - why are there so many?

RawMaterialGirlRawMaterialGirl Member, Professional formulator
edited September 2014 in General
I see a lot of SPF 15 lip balms on the market - but not too many higher ones. Is there something about SPF 15 that is the magical value to formulate for lip care? Is there something regulatory about testing that makes this the number that people seem to go to? Or is it an aesthetics issue - too many sunscreen actives = nasty taste, etc? I was just curious. Thanks for any thoughts!


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