Solvent
ISOPENTYLDIOL
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A small branched diol used as a solvent, humectant, and preservative booster. Light, non-sticky feel; very well tolerated, even in sensitive-skin formulas.
Skin benefits
- Solvent and humectant
- Boosts preservative efficacy
- Lighter feel than glycerin
- Used in Asian-style toners
Known concerns
- Mild eye irritation in concentrate
- Limited dedicated CIR/SCCS review
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.