Why speculating then? There is plenty of hard data on skin testing of various sunscreens. There are physical sunscreens, too, which were around even longer. We have MUCH better understanding of biological processes as well than in asbestos times. What is this drive that makes supposedly technologically literate people flock to the GP question and come up with unfounded paranoid theories?
bee_rider|3 years ago
Sunscreen has had environmental issues, contamination issues, and effectiveness issues (the whole UVA/UVB thing). None of those indicate a problem with the underlying product when used properly, and it is definitely better than nothing! I prefer to cover up with clothes and just avoid the noon-time sun, though.
https://time.com/6084625/sunscreen-safety-regulations/?amp=t...