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Moumoujus

TRIDECYL TRIMELLITATE.

Valuable CAS 94109-09-8 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Tridecyl Trimellitate is a versatile, oil-soluble emollient that enhances skin hydration by forming a protective surface barrier, locking in moisture and promoting suppleness. Beyond its skin-conditioning benefits, it acts as a film-forming agent and texture enhancer, optimizing product consistency and user experience.

Summary

Emollient Skin-conditioning agent Film-forming Texture enhancer Plasticizer Pigment Dispersing

Science

Mechanism of Action

This ingredient operates as a skin-softening emollient and a film-forming agent. It creates a breathable barrier on the skin's surface, effectively preventing transepidermal water loss and shielding against environmental aggressors. This action leads to smoother, more elastic skin. Furthermore, Tridecyl Trimellitate serves as a texture enhancer, acting as a plasticizer to improve product feel and exhibiting excellent pigment-dispersing properties in color cosmetics.

Research

Clinical Evidence

Medium confidence
Effective range 22.3–57.1%
Optimal

N/A

Key findings

  1. 01 Lipstick formulations containing Tridecyl Trimellitate at concentrations of 22.3% and 57.1% were found to be non-irritating and did not induce a phototoxic response in human subjects. The 57.1% concentration was also confirmed as a non-sensitizer in a human repeated insult patch test (HRIPT).

Transparency

Dusting Analysis

Not commonly dusted

Tridecyl Trimellitate is an oil-soluble liquid emollient, not an ingredient typically associated with dry powder dusting.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly stable to heat and light, Tridecyl Trimellitate exhibits excellent oxidative and hydrolytic stability. Its robust nature allows it to be readily dissolved with most oils without degradation, oxidation, or developing off-odors.

Synergies

  • Blends seamlessly with most oils, enhancing overall formulation stability.
  • Improves texture and pigment dispersion in color cosmetic applications.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
57.1%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel deemed Tridecyl Trimellitate safe for use in current cosmetic practices and concentrations, provided it is formulated to be non-irritating. Maximum reported concentration in use is 57.1% in lipstick. While undiluted forms were non-irritating to mouse skin, a 10% concentration showed slight irritation in rabbit skin. It is not restricted under European Union cosmetic regulations.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Tridecyl Trimellitate is a valuable emollient and film-former, offering significant skin conditioning and texture enhancement benefits, supported by a low sensitization risk and proven safety up to 57.1% in human studies.

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