Isostearic Acid

Isostearic acid is a branched-chain fatty acid used in cosmetics as an emollient and co-emulsifier. It's included to provide a cushiony skin feel, stabilize oil-in-water systems, and support richer textures in creams and balms.
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Ingredient Snapshot

Overview
A fatty acid that gives creams a plush, nourishing feel.
Category
Skin Conditioning, Barrier Support
Type
Emollient

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Leaves skin feeling nourished and flexible with a plush afterfeel. Helps reduce the look of dryness and flaking on the surface.

Uses In Skincare & Cosmetics

Used in rich moisturizers, balms, ointments, and creamy makeup bases to add body and a conditioned finish.

Comedogenic Rating

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

Safety

Usually well tolerated with minimal irritation risk. Rare sensitivity is possible; discontinue use if redness or discomfort occurs.

Is Isostearic Acid a Good Ingredient?

Rated Good as a branched fatty acid that effectively softens skin and helps stabilize formula texture, providing reliable conditioning benefits without anything that would push it into Great territory.

Products with Isostearic Acid

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