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PEG-200 HYDROGENATED CASTOR OIL.

Valuable CAS 61788-85-0 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

PEG-200 Hydrogenated Castor Oil is a polyoxyethylated derivative of hydrogenated castor oil, widely recognized for its multi-functional role in cosmetic formulations. It acts as an effective emulsifier, enabling the stable blending of disparate phases like oil and water. Furthermore, it serves as a solubilizer and surfactant, enhancing product consistency and aiding in gentle cleansing while offering potential skin conditioning and humectant properties.

Summary

Emulsifier Surfactant Solubilizer Skin Conditioning Agent Humectant

Science

Mechanism of Action

This ethoxylated castor oil derivative operates through several mechanisms within a formulation. As an emulsifier, it effectively reduces interfacial tension, enabling the stable dispersion of oil phases within aqueous systems. Its surfactant properties lower the surface tension of a product, ensuring uniform application and aiding in the gentle removal of impurities. Additionally, it functions as a solubilizer, facilitating the homogenous integration of challenging ingredients like active compounds, fragrances, and colorants into formulations. On the skin, it is known to act as a conditioning agent and may contribute to maintaining the skin barrier and moisture levels as a humectant.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Polyethylene glycols, including this derivative, are generally non-reactive and stable across neutral, mildly alkaline, and acidic pH ranges. They are not susceptible to microbial degradation. While water solubility typically decreases with increasing molar mass, PEG-200 Hydrogenated Castor Oil is largely hydrophilic and readily water-soluble.

Conflicts

  • Use on compromised or broken skin is not advised, as polyethylene glycols may heighten the sensitization potential of other ingredients under such conditions.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel deemed PEGylated oils, including PEG-30 and PEG-40 Hydrogenated Castor Oil, safe for cosmetic use at concentrations up to 100% when formulated to be non-irritating. While PEG-200 Hydrogenated Castor Oil is generally considered well-tolerated, the CIR noted 'skin/eye/lung irritation - weight of evidence unknown/unassessed' for this specific compound, concluding it is safe for cosmetics when formulated to prevent irritation and subject to use limitations. Trace amounts of 1,4-dioxane, a processing byproduct of ethoxylation, can be controlled through purification. Notably, PEG-30 and PEG-40 Hydrogenated Castor Oil have received FDA approval for certain direct and indirect food additive uses.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-200 Hydrogenated Castor Oil is a versatile ingredient, highly valued for its formulation-enhancing properties as an emulsifier, solubilizer, and surfactant, alongside its potential skin conditioning and hydrating benefits, when correctly incorporated into formulations.

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