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TRIISONONANOIN

Last update on Jan 9, 2026

Triisononanoin is a synthetic branched-chain triester emollient known for its light, non-greasy feel and excellent spreadability. It acts as a superior skin conditioning agent, providing a silky cushion and prolonged playtime on the skin. This versatile ingredient is widely used in facial creams, makeup products like foundations and lipsticks, sunscreens, and deodorants, where it enhances texture, stability, and sensory performance. Its solvent properties also aid in dispersing pigments and actives uniformly.

CAS Number: 56554-53-1 / 206354-95-2Chem/IUPAC Name: Propane-1,2,3-triyl 3,5,5-trimethylhexanoateEINECS/ELINCS No: 260-257-1 / -COSING REF No: 38720

Products with TRIISONONANOIN

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With samples available

SymEffect™ Varytex

by Symrise

INCI: CAPRYLIC/CAPRIC TRIGLYCERIDE | CETEARYL NONANOATE | DIISOPROPYL ADIPATE | GLYCERYL OLEATE CITRATE | STEARYL CAPRYLATE | STEARYL HEPTANOATE | TRIISONONANOIN | PROPANEDIOL DICAPRYLATE/CAPRATE

What is TRIISONONANOIN used for?

  • Emollient/Skin conditioning: Delivers a smooth, velvety after-feel without heaviness. Frequently incorporated in moisturizers, serums, and color cosmetics for enhanced softness.
  • Viscosity controlling: Adjusts formulation thickness for optimal application. Common in creams, lotions, and foundations to achieve desired flow and stability.
  • Solvent: Dissolves and disperses lipophilic ingredients like fragrances and pigments. Ideal for makeup removers, lip products, and tinted formulations.

Origin

Triisononanoin is produced synthetically through the esterification of glycerol with isononanoic acid (a branched C9 fatty acid derived from petrochemical sources). The controlled reaction yields a clear, colorless to pale yellow oily liquid with high purity, ensuring consistency and compatibility in cosmetic vehicles.

What does TRIISONONANOIN do in a formulation?

EMOLLIENT|
SKIN CONDITIONING|
SOLVENT|
VISCOSITY CONTROLLING

Safety Profile

Triisononanoin is considered safe for cosmetic use, as concluded in the amended CIR safety assessment of triglycerides. It shows low irritation and sensitization potential at typical concentrations of up to 36%. It has a low hazard rating from EWG and minimal concerns across assessments. Its large molecular size limits skin penetration, reducing systemic risk. It is approved by the EU COSING database for emollient, skin conditioning, solvent, and viscosity-controlling functions.

TRIISONONANOIN technical profile

PropertyValues
Boiling Point~516°C
Melting Point<0°C
SolubilitySoluble in oils and alcohols; insoluble in water
ViscosityLow

Formulations with TRIISONONANOIN

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By Application

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