I have heard that some Asian or European sunscreens have some UV blockers that are much more stable than the ones that are mainly used in sunscreens available in the USA. So if you’re using one of these, the need to reapply isn’t as much of a concern. The only thing is that they aren’t FDA approved.

Some examples I have heard of are “ethylhexyl triazone”, “diethylamino hydroxybenzoyl hexyl benzoate”, and “bemotrizinol”.

EDIT: The last chemical on my list was actually approved by the FDA this month (June 2026).