Trimethylolpropane Triisostearate

Trimethylolpropane triisostearate is a synthetic triester derived from trimethylolpropane and isostearic acid. Creams, balms, and color cosmetics use it to improve glide, cushion the skin, cut tack, and leave a smooth, soft finish.
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Ingredient Snapshot

Overview
Adds glide and cushion for a smooth, soft finish in creams and balms.
Category
Skin Conditioning, Hydration, Barrier Support
Type
Emollient

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Softens rough, flaky areas and helps hold moisture on the skin for a more comfortable feel, leaving a velvety, conditioned finish without heaviness.

Uses In Skincare & Cosmetics

Frequently included in balms, lip colors, and stick foundations to add a plush feel, and also used in rich face creams and cream blushes to improve the application experience.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally low irritation potential and considered well tolerated. Those with very oily or breakout-prone skin may experience congestion with heavy use. Suitable for lips and face; discontinue if any irritation occurs.

Is Trimethylolpropane Triisostearate a Good Ingredient?

It rates Good as a reliable, stable emollient triester that cushions slip and reduces drag, improving cosmetic elegance. Evidence for direct skin-repair outcomes is limited, and very acne-prone users may find rich ester blends too occlusive, which keeps it from Great.

Products with Trimethylolpropane Triisostearate

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