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POLYGLYCERYL-5 ISOSTEARATE

CAS -
81

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A medium-weight emulsifier built from polyglycerin and isostearic acid. Balances oil and water in formulations while contributing a smooth, non-greasy finish.

Polyglyceryl-5 Isosteearate is the ester of polyglycerin-5 with isostearic acid, a branched C18 fatty acid. The branched chain gives the ingredient a lighter, less occlusive feel than straight-chain stearates. Functions primarily as an emulsifier and surfactant. No significant toxicity has been reported; not restricted in any major market.

Skin benefits

  • Non-greasy emolliency
  • Smooth skin feel
  • Emulsification support

Known concerns

  • Mild irritation possible in sensitive skin

References

EU

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, so always read the physical product label and consult a healthcare professional for personal concerns.