C11-12 ISOALKANE (FORMERLY C11-12 ISOPARAFFIN)
Other
Good
CAS Number: 90622-57-4
About C11-12 ISOALKANE (FORMERLY C11-12 ISOPARAFFIN)
A branched-chain aliphatic hydrocarbon used as a fragrance solvent and emollient in cosmetics; it has a good safety profile with no EU restrictions.
Detailed Analysis
C11-12 Isoalkane is a branched-chain saturated hydrocarbon mixture in the C11-C12 range. It is hydrotreated to cosmetic grade with removal of aromatic compounds and benzene. EU Regulation 1223/2009 does not restrict this ingredient. The shorter carbon chain length makes it more volatile and suitable as a solvent carrier. Skin sensitization and genotoxicity are not observed at cosmetic concentrations.
Skin Benefits
- ✓ Functions as a fast-evaporating fragrance solvent
- ✓ Provides light, non-residue skin feel
- ✓ Improves application spreadability
Known Concerns
- ⚠ Volatile; inhalation exposure concern in spray/aerosol products
- ⚠ May cause mild eye irritation
Safety Score
Good
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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