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GLYCERETH-8 HYDROXYSTEARATE.

Valuable / EMULSION STABILISING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Glycereth-8 Hydroxystearate is a polyethylene glycol (PEG) ether of glycerin esterified with hydroxystearic acid. It primarily functions as an emollient, contributing to skin hydration and softness. Furthermore, its surfactant properties enable gentle cleansing and stabilization of oil-in-water emulsions.

Summary

emollient surfactant/cleansing emulsifying

Science

Mechanism of Action

As a PEG-modified glycerin ester, Glycereth-8 Hydroxystearate exerts its emollient effect by creating a lubricious film on the skin's surface, which helps to reduce transepidermal water loss and promote hydration. Concurrently, its surfactant nature lowers interfacial tension, enabling efficient cleansing by solubilizing impurities and stabilizing the immiscible oil and water phases within formulations.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Glycereth-8 Hydroxystearate exhibits water solubility or dispersibility, rendering it highly adaptable for diverse aqueous cosmetic systems. Optimal product stability, alongside supporting the skin's natural barrier function, is typically achieved when formulations are maintained within a pH range of 4.5 to 6.5.

Safety

Safety Profile

CIR Status
Safe with qualifications
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel generally considers Glycereth-8 (and similar ethoxylated glycerin ingredients) safe for cosmetic application, provided formulations are non-irritating. A specific CIR assessment for GLYCERETH-8 HYDROXYSTEARATE was not directly available; however, related "Glycereth 8 Esters (Unspecified)" are permitted in EWG VERIFIED products with certain use restrictions. These restrictions highlight potential concerns regarding toxic impurity contamination and inhalation risks, especially relevant for spray products.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Glycereth-8 Hydroxystearate serves as a valuable multifunctional ingredient, providing emollient properties for enhanced skin hydration, contributing to gentle cleansing, and effectively stabilizing diverse cosmetic formulations.

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