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PEG-5 HYDROGENATED CASTOR OIL.

Valuable CAS 61788-85-0 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-5 Hydrogenated Castor Oil is a multi-functional ethoxylated derivative of hydrogenated castor oil, primarily serving as an effective emulsifier and surfactant. It facilitates the stable blending of oil and water phases, while also providing mild emollient and cleansing properties to the skin.

Summary

Emulsifying Surfactant Solubilizing Emollient Cleansing

Science

Mechanism of Action

This ingredient functions by reducing the surface tension between immiscible oil and water components, thereby stabilizing emulsions. On the skin, it forms a lightweight, protective film that aids in retaining moisture and minimizing transepidermal water loss. Its surfactant action allows it to encapsulate and lift dirt and impurities, contributing to a gentle cleansing effect.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

For optimal stability and emulsification efficiency, PEG-5 Hydrogenated Castor Oil performs best within a pH range of 4.0 to 8.0, as hydrolysis may occur outside these parameters. It should be incorporated into the oil phase of a formulation before blending with the water phase. If a formula appears cloudy, adjusting the concentration upwards may be necessary. Heat-sensitive ingredients should be introduced only after the mixture has cooled.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
100%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that related PEGylated oils, including PEG-30 and PEG-40 Hydrogenated Castor Oil, are safe for cosmetic use when formulated to be non-irritating. This safety assessment is extrapolated to include PEG-5 Hydrogenated Castor Oil. The FDA lists castor oil as a permitted flavoring agent, and PEG Castor Oil ingredients are allowed as indirect food additives. Manufacturers can control and minimize trace amounts of 1,4-dioxane, a byproduct of the ethoxylation process, through purification.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

PEG-5 Hydrogenated Castor Oil is a valuable, versatile ingredient for enhancing formulation stability and delivering mild emollient and cleansing benefits across all skin types, with a low risk of irritation or comedogenicity.

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