Ingredient
Terephthalylidene Dicamphor Sulfonic Acid (Ecamsule)
INCI name: Terephthalylidene Dicamphor Sulfonic Acid
Ecamsule
Mexoryl SX
What it is
A photostable, water-soluble organic UVA filter approved in the EU and Asia and cleared in the US via a drug approval.
How it works
It absorbs UVA radiation at the skin surface and converts it to harmless heat, with minimal skin penetration.
What it does
UV filter
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.