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Base & Function
Terephthalylidene Dicamphor Sulfonic Acid
Barrier
INCI: Terephthalylidene Dicamphor Sulfonic Acid
In short · TL;DR
Category
Base & Function
Effect
A water-soluble UV filter that absorbs UVA (commonly known as Mexoryl SX / Ecamsule).
Concentration
Roughly a few % in sunscreen formulations (the maximum depends on each country's regulations).
Effect
A water-soluble UV filter that absorbs UVA (commonly known as Mexoryl SX / Ecamsule).
Mechanism
Its camphorsulfonic-acid skeleton absorbs the UVA range and offers high photostability.
Typical concentration
Roughly a few % in sunscreen formulations (the maximum depends on each country's regulations).
Onset
Functions immediately after application.
Cautions
Permitted use differs by region. Pharmaceutical (drug) efficacy claims are not permitted.
Evidence & references
This page is reference information and does not guarantee efficacy. Figures vary by test conditions (in vitro / manufacturer / concentration). It does not indicate pharmaceutical efficacy.
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