emulsifiersStandard

PEG-40 Hydrogenated Castor Oil

PEG-40 Castor Oil

emulsifiersurfactantsolvent

INCI Name

PEG-40 Hydrogenated ...

Functions

3 Roles

Sustainability

5/10

Category

emulsifiers

What It Does

PEG-40 Hydrogenated Castor Oil is a polyethylene glycol derivative of hydrogenated castor oil, created by adding approximately 40 moles of ethylene oxide to the saturated fatty acid chains of castor oil. This ingredient is particularly valued for its ability to solubilize essential oils, fragrances, and lipophilic actives in water-based formulations without creating cloudiness. Formulators choose it over non-hydrogenated versions because the saturation of the ricinoleic acid double bonds provides better oxidative stability and a lighter color, making it ideal for clear formulations and products requiring long shelf life.

Stabilizes oil-water mixtures
Creates elegant cream textures
Enables layered formulations
Improves ingredient distribution

Technical Properties

HLB Value

13

Hydrophilic-Lipophilic Balance

Ionic Charge

nonionic

Molecular charge type

Viscosity Effect

neutral

Impact on formula thickness

Foaming Ability

low

Lather generation

Ingredient Compatibility

Known Interactions

DIHYDROXYACETONEUse Cautionperoxide_oxidation

Ethoxylated surfactants (Ceteareth-*, PEG-*, Polysorbate-*, Poloxamer-*) accumulate peroxides over shelf life via air oxidation of the polyoxyethylene chain. The resulting peroxides degrade DHA, accelerating off-smell and producing orange tones. For DHA formulations, prefer non-ethoxylated emulsifiers: Polyglyceryl-* esters (Polyglyceryl-6 Distearate, Polyglyceryl-10 Stearate), Lecithin, Sucrose Stearate, Olivem 1000 (Cetearyl Olivate + Sorbitan Olivate).

Compatibility analysis powered by OpenMix — open-source formulation science

Sustainability Profile

Sustainability Score

5/10

Biodegradability

inherently biodegradable

Source

mixed

Feedstock

Derived from hydrogenated castor oil (plant-based) reacted with ethylene oxide (petroleum-derived)

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