Database/Emollient/Hydroxyoctacosanyl Hydroxystearate
Mostly petroleum · ISO 16128

Is Hydroxyoctacosanyl Hydroxystearate natural?

Mostly not. 12-Hydroxystearic acid comes from hydrogenated castor oil; the hydroxyoctacosyl part is assumed to derive from a petrochemical ethylene-based C28 olefin epoxide.

INCI nameHydroxyoctacosanyl Hydroxystearate
CAS93840-71-2
FormulaC46H92O4 · 709.2 Da
FunctionEmollient · Skin Conditioning
FeedstockDominant route opens a C26-28 alpha-olefin epoxide with…

How we scored it

12-Hydroxystearoyl C18H35O2 283.5 natural; 2-hydroxyoctacosyl C28H57O2 425.8 assumed petrochemical (C28 olefin epoxide); 283.5/709.2 = 0.40.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Dominant route opens a C26-28 alpha-olefin epoxide with 12-hydroxystearic acid from hydrogenated castor oil. The C28 part could alternatively come from fossil montan wax, which is also non-natural.

In plain English

A waxy emollient ester that thickens and gives structure to sticks, balms and creams, and leaves a soft, silky skin feel. It joins a castor-oil fatty acid to a long-chain alcohol made from petroleum-derived olefin.

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Structure

2D structure of Hydroxyoctacosanyl Hydroxystearate

2-hydroxyoctacosyl 12-hydroxyoctadecanoate

PubChem CID 3022578 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Hydroxyoctacosanyl Hydroxystearate. PubChem CID 3022578. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HYDROXYOCTACOSANYL HYDROXYSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HYDROXYOCTACOSANYL HYDROXYSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROXYOCTACOSANYL%20HYDROXYSTEARATE