Ingredient · INCI reference
Benzylidene Camphor Sulfonic Acid
CAS 56039-58-8
Benzylidene Camphor Sulfonic Acid is an older organic UVB-only filter approved in the EU up to 6%. It is not currently approved in Japan, Korea, or the United States. EWG rates it 2; photostability data is not available here.
Legacy organic Pre-2000 chemical filters; broadly approved. Gen · old organic
01 Spectrum coverage UVB
02 Regional approval · max %
JP — — Japan: No data KR — — South Korea: No data EU ✓ 6% Europe: Approved · max 6% US — — United States: No data
03 Safety profile
EWG score
2
Reef-toxic
No
Endocrine disruptor
No
Comedogenicity
0
Reference
Frequently asked questions
What UV range does this filter cover?
It absorbs in the UVB range only. To achieve broad-spectrum protection, formulators must combine it with separate UVA filters.
Where is this filter approved?
Among the markets tracked here, only the EU approves it, capped at 6%. It is not approved in Japan, Korea, or the US.