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TRIMETHYLOLPROPANE TRIISOSTEARATE.

Valuable CAS 68541-50-4 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

TRIMETHYLOLPROPANE TRIISOSTEARATE is a synthetic ester prized for its emollient and skin-conditioning capabilities. It effectively softens and smooths the skin, creating a non-tacky, light, and glossy finish while forming a gentle occlusive barrier.

Summary

emollient skin conditioning

Science

Mechanism of Action

This ingredient functions primarily as an emollient and skin conditioning agent, working to soften and smooth the skin's surface. It delivers a characteristic non-tacky, light, and glossy sensation upon application. As a soft-spreading, occlusive emollient, it forms a protective layer that helps reduce trans-epidermal water loss, remaining stable and non-migrating once applied. Beyond its direct skin benefits, it also enhances the application properties of solid cosmetic delivery systems.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

This ingredient is not commonly associated with dusting concerns in cosmetic formulations due to its emollient nature.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

TRIMETHYLOLPROPANE TRIISOSTEARATE is readily miscible in oil phases and exhibits good thermal stability, tolerating heat during formulation. It has been observed to form gels when combined with 12-hydroxy stearic acid through a heated stirring process followed by cooling.

Conflicts

  • May not be suitable for individuals concerned with fungal acne due to its isostearic acid derivative base.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Environment Canada classifies this ingredient as not anticipated to be toxic, harmful, persistent, or bioaccumulative. PubChem data indicates that the chemical does not meet GHS hazard criteria based on 100% of available ECHA C&L Inventory reports. Smolecule further notes its low toxicity and biocompatibility. While a direct CIR report or SCCS opinion is not available, its component, Trimethylolpropane, is recognized in the FDA's Inventory of Food Contact Substances, and the ingredient itself is registered in the FDA Global Substance Registration System (UNII: Y32A6D7C6L).

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

TRIMETHYLOLPROPANE TRIISOSTEARATE is a valuable emollient, offering effective skin softening and smoothing with a pleasant, non-tacky finish, particularly beneficial for dry and sensitive skin types.

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