Stearic Acid

Stearic acid is a long-chain saturated fatty acid found in plant and animal lipids, valued as a waxy emollient and structuring material in cosmetics. It's used to stabilize emulsions, add body, and improve spread in creams and lotions.
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Ingredient Snapshot

Overview
A waxy fatty acid that thickens formulas and softens skin.
Category
Skin Conditioning, Emulsifying, Barrier Support
Type
Emollient

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

Low

Skin Benefits

It helps skin feel supple and comfortable by reducing a dry, tight sensation, contributing to a cushioned finish that can support a healthier-feeling moisture barrier.

Uses In Skincare & Cosmetics

It's frequently included in creams, lotions, and body butters to enrich texture and improve payoff, and found in bar cleansers and shaving creams for a denser, creamier lather.

Comedogenic Rating

Stearic Acid has a comedogenic rating of 2. It has a low likelihood of clogging pores but may not suit all skin types.

Safety

It's generally considered low irritation, but acne-prone users may prefer patch testing because fatty acids can be mildly comedogenic for some. No common regulatory restrictions are noted.

Is Stearic Acid a Good Ingredient?

It rates Good because it reliably thickens and stabilizes formulas while providing a soft, cushioned feel, with a long history of use and low irritation for most skin types. Those prone to clogged pores may notice breakouts at higher concentrations due to its mild comedogenic potential, which is what keeps it out of the top tier.

Products with Stearic Acid

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