Comment on Why can't I apply SPF50 sunscreen twice to get SPF100 protection?
Aeao@lemmy.world 2 weeks ago“Critical Wavelength and Broad-Spectrum UV Protection”
Tell them to add a : so I can trust it.
Like “ “Critical Wavelength and Broad-Spectrum UV Protection: the effect of antidisestablishmentarianism on broad spectrum species “.
Now that sound sciency