Ingredient · INCI reference
Cinoxate
a.k.a. Cinoxate
CAS 104-28-9
Cinoxate is an older UVB-only organic filter approved only in the US, where it is capped at 3%. It is not approved in the EU, Japan, or Korea, and it is not photostable. EWG rates it 3.
Legacy organic Pre-2000 chemical filters; broadly approved. ! UNSTABLE Photo-unstable — degrades under sunlight without stabilising filters. Gen · old organic
01 Spectrum coverage UVB
02 Regional approval · max %
JP — — Japan: No data KR — — South Korea: No data EU — — Europe: No data US ✓ 3% United States: Approved · max 3%
03 Safety profile
EWG score
3
Reef-toxic
No
Endocrine disruptor
No
Comedogenicity
0
Reference
Frequently asked questions
What does cinoxate do?
Cinoxate absorbs UVB only and offers no UVA coverage. It is not photostable, so it degrades under sun exposure and is typically paired with more stable filters.
Where is cinoxate allowed?
Among the markets tracked here, cinoxate is approved only in the US, up to 3%. It is not approved in the EU, Japan, or Korea.