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PEG/PPG-8/3 DIISOSTEARATE.

Valuable CAS - / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG/PPG-8/3 DIISOSTEARATE is a multifunctional ingredient functioning as an emollient, conditioner, and emulsifier. It enhances moisture retention, improves product texture, and helps stabilize oil and water formulations, imparting a soft skin feel.

Summary

emollient conditioner emulsifier surfactant humectant texture enhancer viscosity builder

Science

Mechanism of Action

This ingredient operates on multiple levels: as an emollient and conditioner, it forms a protective barrier on the skin, reducing transepidermal water loss and promoting hydration for a smoother texture. As an emulsifier, it stabilizes formulations by effectively blending immiscible oil and water phases. It also functions as a humectant to attract moisture and as a texture enhancer, capable of building viscosity and improving lather in cleansing systems.

Research

Clinical Evidence

Low confidence
Effective range 1–10%
Optimal

5%

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

PEG/PPG-8/3 DIISOSTEARATE is readily dispersible in water and exhibits solubility in both oil and surfactant systems, contributing to its versatility in various formulations.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
59.9%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has determined PEG propylene glycol derivatives, including this ingredient, to be safe for cosmetic use. Generally, PEGs and their derivatives exhibit minimal ocular or dermal irritation, possess extremely low acute and chronic toxicities, and have a negligible sensitizing potential on healthy skin. A common use concentration recommended by suppliers ranges from 1% to 10%, though historical applications included concentrations up to 59.9% in certain wash-off mask formulations.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG/PPG-8/3 DIISOSTEARATE is a valuable ingredient due to its versatile roles as an emollient, conditioner, and emulsifier, offering broad skin compatibility and a strong safety profile for diverse cosmetic applications.

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