Tinosorb S
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Excellent photostable broad-spectrum filter. Not approved in the US.
How solid is the pore-clogging number
Tinosorb S rates 0 of 5 — no observed follicular occlusion in testing. The rating is graded moderate. Reasonably supported, but from fewer or less direct sources than the best-established ratings.
It describes the raw ingredient in isolation. In a finished product, how much is present and where it sits in the list matter just as much. Check a whole label to see it in context.