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Moumoujus

HYDROGENATED CASTOR OIL PEG-8 ESTERS.

Valuable / SKIN CONDITIONING, VISCOSITY CONTROLLING

Hydrogenated Castor Oil PEG-8 Esters is a multifaceted ingredient known for its skin conditioning properties, helping to improve the feel and appearance of dry or damaged skin. It also functions as an effective emulsifier and solubilizer, integral for blending oil and water phases in formulations and dispersing other components.

Summary

emulsifying surfactant skin conditioning emulsion stabilizer solubilizer

Science

Mechanism of Action

This ingredient primarily acts as a skin conditioning agent, working to reduce flakiness and enhance elasticity in compromised skin. Furthermore, its surfactant capabilities enable it to lower the interfacial tension between immiscible liquids, thereby stabilizing emulsions and aiding in the solubilization of hydrophobic ingredients within aqueous systems.

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 5.5 – 7
0 7 14

Stability

Chemically stable, this ingredient maintains integrity across various conditions. Prolonged exposure to heat may lead to a reversible phase separation upon cooling, which can be easily re-homogenized. Aqueous solutions can be thermally sterilized at 120 °C, potentially resulting in a slight decrease in pH.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Hydrogenated Castor Oil PEG-8 Esters, within the broader category of PEGylated oils, safe for use in cosmetics under current practices and concentrations, provided formulations are non-irritating. Previous assessments for similar PEG-castor oils, such as PEG-30 and PEG-40, confirmed safety at concentrations up to 100%. Trace amounts of 1,4-dioxane, a processing byproduct, can be minimized through purification. Castor oil itself is FDA-approved as a food flavoring, and its PEG derivatives are permitted as indirect food additives in textiles.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Hydrogenated Castor Oil PEG-8 Esters is a valuable ingredient, offering significant skin conditioning, emulsifying, and solubilizing benefits with a low risk of irritation or comedogenicity, making it suitable for all skin types.

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