Looking for help - any idea why I might react to all US physical sunscreens but not all Asian ones?

I am not sure what is the right sub because I dont think the culprit is a fragrance, but it is about FF sunscreen options. I have rosacea and fragrance issues.

So I have tried 30 sunscreens over the past two years, both chemical and physical - US and K and J brands. As you know the fragrance free sunscreen hunt is hard! And I avoid niacinamide and HA as it triggers my rosacea (also very hard).

I have noticed that every US physical sunscreen (not chemical) I have tried has stung my skin and irritated it - but several asian brands have been okay.

Any idea what the culprit might be? Or suggestions on how I test it to figure it out? Do I need to swatch and make a spreadsheet on ingredients labels until I figure it out?