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Moumoujus

PEG-30 SOY STEROL.

Valuable / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-30 Soy Sterol is a polyoxyethylenated derivative of soy sterols, primarily serving as a surfactant and emulsifying agent crucial for stable formulations. It also functions as a skin conditioning agent, enhancing the appearance of dry or compromised skin by promoting suppleness and reducing flaking.

Summary

Emulsifying agent Surfactant Skin conditioning agent Cleansing agent Solubilizing agent Appearance and consistency modifier Emollient Viscosity control agent Pigment dispersion agent

Science

Mechanism of Action

This ingredient operates by significantly lowering the surface tension between immiscible phases, thereby facilitating the creation and stabilization of emulsions. As a skin conditioning agent, it helps to improve the skin's surface, contributing to a smoother, more hydrated feel. Additionally, its properties allow it to act as a cleansing, solubilizing, and viscosity modifying agent within cosmetic matrices.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Specific data regarding dusting behavior for PEG-30 Soy Sterol is not available within the provided research.

The Formula

Formulation

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

Optimal stability is observed within a pH range of 5.0 to 7.0 at 25°C, based on indicative data from related PEG Soy Sterol ingredients. Rigorous purification steps are essential to mitigate the presence of potential 1,4-dioxane and ethylene oxide contaminants.

Conflicts

  • Should not be incorporated into products intended for application on damaged or burned skin due to observed systemic toxicity and sensitization risks associated with PEGs.
  • Requires meticulous purification to remove trace amounts of 1,4-dioxane and ethylene oxide, byproducts of the ethoxylation process.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
2%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that PEG-30 Soy Sterol, alongside related PEG Soy Sterols, is safe for use in cosmetic and personal care products at concentrations up to 2%. While generally considered low risk for intact skin, it is specifically advised against use on damaged skin due to potential systemic toxicity and sensitization. Concerns raised by EWG regarding developmental and reproductive toxicity from theoretical free phytosterols have been addressed by the CIR Expert Panel, which found no evidence of estrogenic activity or reproductive hazard from well-defined phytosterols. The ingredient is also approved as a food additive by the FDA and authorized in the European Union, supporting its safety profile when purified appropriately to control for 1,4-dioxane and ethylene oxide.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-30 Soy Sterol is a valuable multi-functional ingredient, primarily serving as an effective emulsifier and skin conditioner, demonstrating low irritancy and comedogenicity for most skin types at concentrations up to 2% in intact skin applications, provided it undergoes adequate purification.

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