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PEG-190 DISTEARATE.

Valuable CAS 9005-08-7 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

PEG-190 Distearate is a versatile polyethylene glycol derivative of stearic acid, functioning as a key surfactant in skincare formulations. It primarily acts as an effective emulsifier, a robust viscosity controller, and a gentle cleansing agent, contributing to stable and texturally refined products.

Summary

Cleansing Agent Emulsifying Viscosity Controlling Solubilizer

Science

Mechanism of Action

This ingredient operates by significantly reducing the surface tension between oil and water phases, facilitating their stable co-existence, particularly in oil-in-water emulsions (possessing an HLB of 18.9). Beyond its emulsifying prowess, PEG-190 Distearate also serves as an associative thickener, building viscosity in formulations, including those utilizing common surfactants and sulfate-free systems. Furthermore, it can solubilize various oils and fatty materials within a product matrix.

Research

Clinical Evidence

High confidence
Effective range 0.5–50%
Optimal

N/A

Key findings

  1. 01 Concentration ranges of 0.5-50% are typically employed for viscosity control; a narrower range of 0.5-5% is often recommended for optimal thickening performance, depending on the specific product type (Ataman Kimya).

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 5 – 8
0 7 14

Stability

A 3% solution of PEG-190 Distearate typically maintains a pH between 5 and 8. It disperses effectively in water and is soluble in isopropanol, indicating good general stability within common cosmetic pH ranges.

Synergies

  • Exhibits particular effectiveness as an associative thickener in formulations containing common surfactants and in sulfate-free systems.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel determined PEG distearates, including PEG-190 Distearate, are safe for use in cosmetics when formulated to be nonirritating to the skin. While generally showing low oral and dermal toxicity and minimal irritation on intact human skin, it is important to note that sensitization and nephrotoxicity have been reported in burn patients treated with PEG-based creams. For general cosmetic applications, a supplier suggests safe use up to 5.0% concentration.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-190 Distearate is a valuable multi-functional ingredient, integral for achieving stable emulsions, optimal product viscosity, and effective cleansing across a broad spectrum of skincare and personal care formulations.

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