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Moumoujus

PEG-35 STEARATE.

Valuable CAS 9004-99-3 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-35 Stearate is a polyglycol ester that primarily functions as an emulsifying agent and surfactant, crucial for stabilizing formulations containing both oil and water. Its amphiphilic structure enables it to reduce interfacial tension, while also imparting emollient properties to support the skin's moisture barrier.

Summary

emulsifying surfactant emollient humectant solubilizer consistency enhancer binding agent softening agent

Science

Mechanism of Action

PEG-35 Stearate operates by lowering the interfacial tension between immiscible phases, such as oil and water, facilitating the formation and stabilization of emulsions through its lipophilic and hydrophilic components. Upon application, it also forms a thin occlusive film on the skin's surface, acting as an emollient to reduce transepidermal water loss and enhance hydration.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Clinical evaluations have demonstrated that PEG Stearates, including PEG-35 Stearate, do not induce irritation or sensitization on intact skin at concentrations up to 25%.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

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 PEG-35 Stearate, safe for cosmetic use under current practices, specifically on intact skin at concentrations up to 25%. However, its application on broken or compromised skin is not advised due to documented instances of sensitization and nephrotoxicity in burn patients. Formulators should also be aware of potential trace impurities like ethylene oxide and 1,4-dioxane, common to some PEG compounds.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-35 Stearate is a valuable ingredient for its robust emulsifying and surfactant capabilities, contributing significantly to formulation stability and skin moisture, with a well-established safety profile for intact skin up to 25%.

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