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Isoceteareth-8 Stearate

ISOCETEARETH-8 STEARATE is a synthetic ester functioning primarily as an emulsifier, enabling the stable blending of immiscible liquids like oil and water. It also serves as a surfactant, facilitating product spreadability and aiding in cleansing, while providing skin conditioning benefits.

Directory entry · Individual source review pending

This profile is awaiting an individual source review. Treat its ratings, dose estimates and compatibility labels as provisional; they are not medical advice or proof of a finished product’s effects.

emulsifying surfactant cleansing agent skin conditioning

Science

Mechanism of Action

This ingredient operates by effectively reducing interfacial tension between oil and water phases, thereby promoting the formation and stability of emulsions. As a surfactant, it lowers the surface tension of cosmetic formulations, which contributes to more uniform application and efficient cleansing. Additionally, as a stearate ester, it forms a light film on the skin's surface, contributing to a perceptibly softer and smoother texture.

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 N/A
0 7 14

Stability

ISOCETEARETH-8 STEARATE actively improves the stability of cosmetic formulations by acting as an effective emulsifier. Its ability to interact with both aqueous and oil phases is suggested by related compounds, which are described as water-soluble, dispersible in warm water, and soluble with haze in mineral oil.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
5%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has broadly evaluated similar ethoxylated fatty esters, concluding their safety under current use practices when formulated to be non-irritating and non-sensitizing. While ISOCETEARETH-8 STEARATE was not singled out, this provides relevant context. Regulatory bodies approve the closely related Isocetyl Stearoyl Stearate within a 1-5% concentration. Patch testing is advised for individuals with sensitive skin or known allergies to fatty alcohols or acids, indicating a potential for individual sensitivity concerns.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

ISOCETEARETH-8 STEARATE is a valuable multi-functional ingredient that enhances formulation stability and skin feel, requiring careful consideration for sensitive skin types within its 5% maximum concentration.

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