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PEG/PPG-450/50 TRIMETHYLOLPROPANE LAURYL ETHER.

Valuable / VISCOSITY CONTROLLING

This associative polymer acts as a highly effective rheology modifier, precisely increasing the viscosity of aqueous systems and emulsions. It contributes to a luxurious product feel by enhancing film thickness on the skin, also serving as an emollient and film-former.

Summary

Viscosity Enhancer Rheology Modifier Emollient Film-forming

Science

Mechanism of Action

PEG/PPG-450/50 Trimethylolpropane Lauryl Ether functions as an associative thickener. Its water-soluble polymeric chains, modified with hydrophobic end caps, interact with other hydrophobic components within a formula, creating a structured network via micelle-type associations. This network building significantly increases viscosity, providing rheological control, high shear viscosity, and a Newtonian-type flow, ultimately improving the sensory experience and film attributes on the skin.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–5%
Optimal

This ingredient is typically effective within a concentration range of 0.5% to 5.0% for its rheological and film-forming properties.

Key findings

  1. 01 Referenced for its thickening efficacy, a similar compound, Rheoluxe® 8015 (PEG/PPG-450/50 Trimethylolpropane Dodecyl Ether), demonstrates effective viscosity building in aqueous and emulsion systems within the 0.5% to 5.0% range, indicating comparable performance for this ingredient.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 2 – 12
0 7 14

Stability

This ingredient exhibits excellent heat, salt, and pH stability, performing robustly across extreme pH levels (2.0-12.0) and high electrolyte concentrations. It does not compromise emulsion stability and is compatible with cold processing systems.

Conflicts

  • Optimal viscosity development may be hindered in formulations containing high HLB (hydrophilic-lipophilic balance) surfactants.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) has not specifically evaluated PEG/PPG-450/50 Trimethylolpropane Lauryl Ether. However, formulations containing this thickener are broadly considered dermally compatible and acceptable for topical application within a wide pH spectrum, suggesting a low general safety concern for its intended use.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG/PPG-450/50 Trimethylolpropane Lauryl Ether is a versatile, stable associative thickener that significantly enhances product texture and feel across a wide pH range, suitable for various skin types with a low risk of irritation or comedogenicity.

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