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POLYGLYCERYL-10 HEPTASTEARATE

CAS 99126-54-2
77

Safety score · 0–100

Fine

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

About

A heavier emulsifier system with seven stearic acid tails on a polyglycerin backbone, excellent for rich, stable creams.

Polyglyceryl-10 Heptastearate is the decaester of polyglycerin-10 with stearic acid, where on average 7 of the 10 hydroxyls are esterified. The high degree of esterification and long C18 chains give it strong emollient and occlusive properties. It functions as a nonionic emulsifier suitable for w/o and o/w systems and provides thickening as well. The glycerol polymerization process can generate free glycerol as a byproduct, which is regulated at up to 5% in the final cosmetic in the EU.

Skin benefits

  • Rich, nourishing emolliency
  • Stable emulsification
  • Thickens formulations

Known concerns

  • Free glycerol by product (regulated)
  • Stearic acid can be mildly comedogenic in oily/acne-prone 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 — always read the physical product label and consult a healthcare professional for personal concerns.