[athena123]

Misschievous, certainly mineral makeup will help, since both titanium and zinc are physical barriers that DEFLECT the sun. A hat is always good if you're on the beach or in full sun. I even apply sunscreen to face, hands, neck and chest during the winter since UV can travel through glass and clouds.

The study Kuippo was so kind to locate and post is in reference to chemical sunscreens that absorb and interact with UVA rays; that's why they break down and can contribute to free radicals. Once I started reading stuff like this, my search for a mineral chemical free facial sunscreen began. I'm honestly not sure how stable Mexoryl or Parsol 1789 are supposed to be, although Kuippo may be able to shed some more light on that.

Kuippo, sorry to go off topic but are you a doctor or derm, sounds like you know a ton about this! What kind of sunscreen do you use?

I spent so much time and money trying to find a good facial sunscreen, I hope my search will be over with the NIA24 - it's so lovely, completely physical and feels almost as nice as the uber spendy Clarins UV40. Too many zinc based sunscreens like Badger Balm and UVNaturals is simply too heavy and occlusive for oily skin like mine.