Zinc Oxide Hemorrhoids Why There Are More Sunscreens Use Titanium Dioxide Than Zinc Oxide?

Why there are more sunscreens use titanium dioxide than zinc oxide? - zinc oxide hemorrhoids

I read in reviews that zinc oxide is the best sunscreen, and it is desirable that the titanium dioxide. He also said a chemical sunscreen may not be good. But in the shops I found that most sunscreen zinc oxide sunscreen contains no chemicals and chemical products have no screens, the only titanium dioxide. In fact, a lot of sunscreens containing titanium dioxide on titanium-zinc. Why is this so?