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HYDROGENATED CASTOR OIL TRIISOSTEARIN ESTERS.

Valuable CAS 226993-50-6 / SKIN CONDITIONING, VISCOSITY CONTROLLING

Hydrogenated Castor Oil Triisostearin Esters enhance skincare formulations as an emollient, delivering a smooth skin feel and conditioning benefits. This ingredient also acts as a robust consistency-building agent, helping to stabilize product textures and prevent moisture loss through occlusive action.

Summary

emollient skin conditioning viscosity controlling oil gelling agent

Science

Mechanism of Action

This ester primarily functions as a skin conditioner and emollient, imparting a smooth and lubricious texture. As a derivative of hydrogenated castor oil, it contributes to product viscosity and stability as a consistency-building agent, capable of gelling oil and silicone phases. Furthermore, its occlusive properties aid in reducing transepidermal water loss, thus supporting skin hydration.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The ingredient demonstrates general stability. However, related ester compounds, specifically PEGylated hydrogenated castor oil triisostearates, may be susceptible to hydrolysis under conditions of strong acidity or alkalinity, suggesting potential pH sensitivity for esters. Hydrogenated castor oil itself is compatible with various waxes such as beeswax, carnauba, and candelilla, and can facilitate stable anionic and cationic emulsion formation with appropriate emulsifiers.

Synergies

  • beeswax
  • carnauba wax
  • candelilla wax
  • anionic emulsifiers
  • cationic emulsifiers

Conflicts

  • strong acids
  • strong alkalis

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed Hydrogenated Castor Oil (a related compound) as safe for use in cosmetic applications. Maximum reported concentrations for Hydrogenated Castor Oil were 39% in 2002, with a more recent maximum of 21% noted in eyebrow pencils in 2023. These specific assessments and concentration data refer to Hydrogenated Castor Oil generally, not explicitly Hydrogenated Castor Oil Triisostearin Esters. The FDA recognizes Castor Oil as Generally Recognized As Safe (GRAS) for certain uses, and PEGylated derivatives are approved food additives.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

HYDROGENATED CASTOR OIL TRIISOSTEARIN ESTERS is a valuable multifunctional ingredient, offering significant skin conditioning and textural benefits while being generally safe for use in various formulations.

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