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Moumoujus

STEARETH-4 STEARATE.

Valuable / SKIN CONDITIONING

STEARETH-4 STEARATE is a synthetic compound primarily utilized as a versatile emulsifier and surfactant in cosmetic formulations. It also offers the additional benefit of functioning as a skin conditioning agent, contributing to overall skin well-being.

Summary

Emulsifier Surfactant Skin conditioning

Science

Mechanism of Action

This ingredient operates by significantly reducing the interfacial tension between immiscible liquid phases, which is crucial for forming and stabilizing uniform emulsions in skincare products. Beyond its role in formulation stability, it actively contributes to skin health by maintaining its optimal condition.

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

While generally considered stable, PEG Stearates possess ether oxygens that exhibit potential reactivity, and their ester bonds are susceptible to enzymatic cleavage.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of Steareth ingredients, including Steareth-4, for use in cosmetics under current practices. The U.S. FDA permits fatty alcohols reacted with polyethylene glycol as indirect food additives, and its stearic acid component is classified as Generally Recognized As Safe (GRAS). Trace amounts of 1,4-dioxane, a byproduct of ethoxylation, may occur, but these can be effectively managed through purification steps.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

STEARETH-4 STEARATE is a valuable polyfunctional ingredient, effectively stabilizing cosmetic formulations as an emulsifier and surfactant while contributing to skin conditioning with a confirmed safe-as-used profile.

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