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Moumoujus

TRIISOSTEARIN.

Valuable CAS 26942-95-0 / SKIN CONDITIONING, VISCOSITY CONTROLLING

Triisostearin is a synthetic ester of isostearic acid and glycerin, functioning primarily as an emollient and skin conditioning agent. It imparts a non-greasy, smooth feel to formulations, enhancing spreadability and skin hydration without heavy occlusion.

Summary

Emollient Skin Conditioning Agent Viscosity Controlling Agent Solvent

Science

Mechanism of Action

This ingredient forms a soft, non-occlusive film on the skin's surface, which effectively reduces transepidermal water loss (TEWL). By replenishing the skin's lipid barrier, Triisostearin maintains optimal moisture levels, contributing to skin suppleness and a refined texture.

Research

Clinical Evidence

Medium confidence
Effective range 1–30%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Triisostearin is an oily liquid, not a powdered ingredient, and therefore does not pose a dusting concern in formulation or application.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

As an ester, Triisostearin exhibits good stability within typical cosmetic pH ranges. However, prolonged exposure to extreme pH values (below 4 or above 8) may lead to hydrolysis, compromising its integrity.

Synergies

  • Other emollients
  • Occlusive agents
  • Waxes for texture enhancement

Conflicts

  • Strong acids at low pH
  • Strong bases at high pH

Safety

Safety Profile

CIR Status
Safe as used in cosmetics
Pregnancy
Safe
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed Triisostearin, concluding it is safe for use in cosmetic products. It exhibits a low sensitization and irritation potential.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Triisostearin is a valuable emollient, offering broad skin compatibility and a lightweight feel, making it suitable for a diverse range of precision skincare applications focused on hydration and skin texture.

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