UV filter ingredient
Phenylbenzimidazole Sulfonic Acid
INCI: PHENYLBENZIMIDAZOLE SULFONIC ACID
A water-soluble UVB UV filter (Ensulizole). Approved by FDA and EU (up to 4%). Converts UV energy to heat. Best used in combination with UVA filters due to its narrow UVB-only spectrum.
Also known as: ensulizole, eusolex 232, parsol HS, phenylbenzimidazole sulphonic acid
UV-filter
Benefits
- ✓UVB filter (290-320 nm)
- ✓Water-soluble — suitable for lightweight sunscreens
Watch for
- ⚠Generates free radicals on UV exposure when used alone — typically combined with UVA filters
Compatibility
✓ Works well with
+ Butyl Methoxydibenzoylmethane+ Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
