Trimethylolpropane Triisostearate ●
TL;DR. This ingredient is a rich emollient and pigment-dispersing ester used to add cushion, slip, gloss, and water resistance in color cosmetics, lip products, and skin care. It also helps bind powders and improve spread in anhydrous formulas.
What does Trimethylolpropane Triisostearate do in a cosmetic formula?
This ingredient is a rich emollient and pigment-dispersing ester used to add cushion, slip, gloss, and water resistance in color cosmetics, lip products, and skin care. It also helps bind powders and improve spread in anhydrous formulas.
Is Trimethylolpropane Triisostearate clean?
From a clean-beauty perspective, it is generally low concern for irritation and is not a common allergen, preservative, or restricted-list trigger. The main friction is its synthetic ester profile and feedstock documentation, especially for standards that prioritize natural-origin inputs.
Is Trimethylolpropane Triisostearate sustainable?
This material may include plant-derived fatty chains, but the central building block is often synthetic and may be petroleum-derived unless a supplier documents otherwise. It is an ester and is expected to break down over time, though its high oil solubility and branching can make biodegradation slower than simpler linear plant oils.
Is Trimethylolpropane Triisostearate COSMOS-approved?
It is not automatically aligned with COSMOS-organic or COSMOS-natural, and acceptance depends on documented natural-origin feedstocks and permitted processing. From a Green Chemistry view, it has some positives as an ester with low volatility and good formulation efficiency, but renewable sourcing and biodegradation profile are supplier-dependent.
How does Trimethylolpropane Triisostearate work chemically?
The molecule is a bulky, highly branched triester, which explains its low volatility, glossy feel, strong pigment wetting, and resistance to crystallization. It is typically used in oil phases and anhydrous systems, remains stable across normal cosmetic pH ranges because it is not water soluble, and can be paired with waxes, oils, and powders to tune payoff and film feel.
Last updated 2026-05-14