Pentaerythrityl Tetraisostearate

Pentaerythrityl Tetraisostearate is a branched ester of isostearic acid, used as an oil-soluble emollient and film former in cosmetic products. It boosts spreadability, cushion, and gloss, limits transepidermal water loss, and extends wear.
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Ingredient Snapshot

Overview
An ester that cushions skin and helps seal in moisture for longer wear.
Category
Skin Conditioning, Barrier Support
Type
Emollient

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Leaves skin feeling soft and supple with a silky slip; helps seal in moisture for lasting comfort and a smooth finish.

Uses In Skincare & Cosmetics

Common in lipsticks, balms, and long-wear foundations to improve glide and give a satiny sheen; also used in rich creams and sunscreens to improve texture.

Comedogenic Rating

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

Safety

Generally well tolerated with low irritation potential; patch test if very sensitive. Its rich, occlusive feel may be too heavy for some oily or acne-prone users.

Is Pentaerythrityl Tetraisostearate a Good Ingredient?

Earns a Great rating as a stable, inert ester emollient known for reliable slip and occlusive support, backed by a long history of low irritation across varied formulations.

Products with Pentaerythrityl Tetraisostearate

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