Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

POLYGLYCERYL-2-PEG-4 STEARATE.

Valuable / SURFACTANT - EMULSIFYING

POLYGLYCERYL-2-PEG-4 STEARATE is a multifaceted ingredient functioning primarily as an emulsifier in skincare formulations. Its unique molecular structure, featuring both hydrophilic and lipophilic segments, enables it to efficiently blend immiscible oil and water phases, thereby creating and stabilizing harmonious emulsions. Beyond its emulsifying capabilities, it also contributes emollient properties, enhancing skin hydration and texture.

Summary

Emulsifying Surfactant Skin conditioning Viscosity controlling Emollient

Science

Mechanism of Action

On a molecular level, POLYGLYCERYL-2-PEG-4 STEARATE functions by positioning itself at the interface of oil and water phases, utilizing its hydrophilic polyglycerol and PEG segments alongside its lipophilic stearic acid component to significantly reduce surface tension. This action facilitates the formation and robust stabilization of emulsions, particularly creamy oil-in-water types, often by contributing to the development of liquid crystalline gel networks that augment viscosity and emulsion integrity. Furthermore, it imparts emollient benefits to the skin, aiding in moisture retention, promoting softness, and refining overall product texture and consistency.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 4 – 9
0 7 14

Stability

This emulsifier effectively blends immiscible phases. For optimal emulsion stability, particularly when forming liquid crystalline gel networks, it is recommended to pair with a co-emulsifier possessing a melting point significantly above ambient temperatures. It demonstrates robust compatibility with both alcohol and electrolytes.

Synergies

  • Alcohol
  • Electrolytes

Conflicts

  • Due to its stearate component, caution is advised when formulating with highly acidic active compounds or excipients (e.g., citric acid), which may potentially lead to ingredient degradation or altered physicochemical properties, though direct incompatibility data for this specific ingredient is not explicitly detailed.

Safety

Safety Profile

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

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PEG Stearates, including this variant, safe for use in cosmetics within established concentrations. Related clinical studies at concentrations up to 25% found no evidence of irritation or sensitization. The U.S. FDA also recognizes PEG-4 Polyglyceryl-2 Stearate as safe for specific food uses. While generally well-tolerated, individuals with heightened sensitivity, particularly to plant-derived ingredients, could potentially experience mild allergic reactions or localized irritation.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

As a highly effective and well-tolerated emulsifier with emollient properties, POLYGLYCERYL-2-PEG-4 STEARATE is a valuable ingredient for stabilizing diverse cosmetic formulations across all skin types.

Related

Similar Ingredients

Finding similar ingredients…