Snapshot
- Overview
- A fatty acid that gives creams a plush, nourishing feel.
- Category
- Skin Conditioning, Barrier Support
- Type
- Emollient
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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Our take
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.
What it does
Skin Benefits
Leaves skin feeling nourished and flexible with a plush afterfeel. Helps reduce the look of dryness and flaking on the surface.
Where you'll find it
Uses in Skincare & Cosmetics
Used in rich moisturizers, balms, ointments, and creamy makeup bases to add body and a conditioned finish.
Before you use it
Safety
Usually well tolerated with minimal irritation risk. Rare sensitivity is possible; discontinue use if redness or discomfort occurs.
Products with Isostearic Acid
