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Moumoujus

PEG-8 DIOLEATE.

Valuable CAS 9005-07-6 / SURFACTANT - EMULSIFYING

PEG-8 Dioleate is a versatile cosmetic ingredient primarily functioning as an emulsifier, stabilizing oil and water phases in formulations. It also acts as a conditioning agent and humectant, enhancing skin hydration and texture. Its solvent properties aid in delivering other active ingredients.

Summary

emulsifying conditioning humectant solvent surfactant

Science

Mechanism of Action

This ingredient operates by significantly reducing the interfacial tension between incompatible oil and water components due to its amphiphilic molecular structure, effectively creating stable emulsions. When applied to the skin, it draws and retains moisture, functioning as a humectant to bolster the skin's natural barrier. Additionally, its solvent capabilities facilitate the more efficient absorption of other active ingredients into the stratum corneum.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

PEG-8 Dioleate exhibits good stability within a pH range of 4.0 to 7.5 and demonstrates resistance to moderately strong acids, alkalis, and salt solutions. However, prolonged exposure to temperatures above 50°C may induce oxidation, potentially leading to the formation of peroxides.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
25%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of PEGs, including dioleates, for use in cosmetics at concentrations up to 25%. It is critically important to avoid application on broken or damaged skin to mitigate potential absorption and irritation. Manufacturers are advised to rigorously control impurities such as residual ethylene oxide and 1,4-dioxane to ensure they remain below specified limits, aligning with FDA guidance for intact skin use.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

PEG-8 Dioleate is a valuable multi-functional ingredient, primarily contributing to formulation stability as an emulsifier and enhancing skin hydration as a humectant, with a generally recognized good safety profile for intact skin.

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