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Moumoujus

STEARETH-50.

Valuable CAS 9005-00-9 (Generic) / CLEANSING, GEL FORMING, SURFACTANT - CLEANSING

STEARETH-50 is a versatile nonionic surfactant and an oil-in-water emulsifier, crucial for creating stable cosmetic formulations. It also possesses cleansing and solubilizing properties, making it beneficial across a wide array of personal care products.

Summary

Surfactant Emulsifying Cleansing Solubilizing

Science

Mechanism of Action

Operating as a nonionic surfactant, STEARETH-50 effectively reduces the interfacial tension between immiscible phases like oil and water, facilitating their uniform dispersion and stabilization within an emulsion. Beyond its primary emulsifying role, it contributes to skin cleansing by aiding in the dissolution and removal of surface impurities, and functions as a solubilizer for other ingredients.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

STEARETH-50 exhibits robust stability across a wide pH range, showing resilience to acidic, alkaline, and hard water conditions.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has determined Steareth ingredients, including STEARETH-50, to be safe for use in cosmetic formulations, provided they are engineered to be non-irritating. While the ethoxylation process can yield trace amounts of 1,4-dioxane, purification steps can effectively control its presence. This ingredient is permissible in EU cosmetics and holds FDA approval for certain indirect food additive applications.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A valuable multi-functional ingredient, STEARETH-50 effectively stabilizes emulsions and aids in skin cleansing, provided it is precisely formulated to be non-irritating, making it suitable for a wide range of precision skincare applications.

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