POLYGLYCERYL-2 SESQUISTEARATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An emulsifier with a roughly balanced ratio of polyglycerin and stearic acid, offering both water-loving and oil-loving properties for stable creams.
Polyglyceryl-2 Sesquistearate has an average of 1.5 stearic acid molecules esterified per molecule of polyglycerin-2, giving it an intermediate character between a mono- and di-ester. The name sesquistearate reflects the 3:2 ratio of fatty acid to glycerol. Functions as a nonionic emulsifier and skin-conditioning agent. The moderate degree of substitution provides good emulsification in o/w systems while maintaining emollient properties from the stearic acid component. CosIng lists no restrictions for this entry.
Skin benefits
- Balanced emulsification
- Emollient
- Conditions skin
Known concerns
- Stearic acid theoretical comedogenicity
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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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.