Solvent
C8-9 ISOALKANE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A light volatile branched hydrocarbon used as a fast-evaporating cosmetic solvent. The petroleum-naphtha CAS family carries a benzene-residue concern unless severely hydrotreated.
Function
Skin benefits
- Light, fast-evaporating volatile hydrocarbon
- Improves spreadability and dry-down
- Solvent for actives
Known concerns
- CAS 64741-66-8 is a petroleum naphtha fraction — possible benzene/aromatic residues if not severely hydrotreated
- Volatile so not a long-term skin contactant, but inhalation potential
- Some EU restrictions on light naphthas where benzene >0.1%
- Variable specifications between suppliers
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related solvents
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.