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Stearic Acid

EmollientEmulsifierSurfactantNatural

Also known as: Octadecanoic Acid, C18:0

A saturated fatty acid found naturally in animal and vegetable fats. Used as an emulsifier, thickener, and skin-conditioning agent.

Benefits

Emollient, protective barrier, emulsifies and thickens formulations, improves product stability.

How to Use

Present in many creams and cleansers. No specific application instructions.

Technical Details
Typical Concentrations0.5%-5%
Research Summary

Safe with long history of cosmetic use. CIR-approved. One of the most common fatty acids in skincare formulations.

Cautions

Very well tolerated. Non-comedogenic at typical formulation concentrations.

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Stearic Acid — Skincare Ingredient | Skinularity