Database/Emollient/PEG-10 Hydrogenated Castor Oil
Mostly natural · ISO 16128

Is PEG-10 Hydrogenated Castor Oil natural?

Mostly. Natural hydrogenated castor oil backbone with a short 10-mol petrochemical ethylene oxide chain, so natural mass still dominates.

INCI namePEG-10 Hydrogenated Castor Oil
CAS61788-85-0
FunctionEmollient · Emulsifying Surfactant
FeedstockHydrogenated natural castor oil is ethoxylated with a…

How we scored it

Hydrogenated castor oil 939.5 Da (natural) + 10x EO 44.05 Da = 440.5 Da (petrochemical) -> 939.5/1380.0=0.68.
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

Hydrogenated natural castor oil is ethoxylated with a short chain of 10 moles of petrochemical ethylene oxide. No bio-based ethoxylation alternative is used commercially.

In plain English

An emollient and emulsifier made from hydrogenated castor oil with a short petroleum-derived chain attached, used to soften skin and help blend oil and water.

CosIng definition: Castor oil (Ricinus communis), hydrogenated, ethoxylated (10 mol EO average molar ratio)

Natural alternatives with the same function

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. 2PEG-10 HYDROGENATED CASTOR OIL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PEG-10 HYDROGENATED CASTOR OIL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEG-10%20HYDROGENATED%20CASTOR%20OIL